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Finding the Fourth Proportional to 12,484.35, 17,228.39 and 6,819.17

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Solution

The fourth proportional to 12,484.35, 17,228.39 and 6,819.17 is: 9,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.35 : 17,228.39 = 6,819.17 : x
  2. Step 2: Convert to fraction form
    12,484.35/17,228.39 = 6,819.17/x
  3. Step 3: Cross multiply
    12,484.35x = 17,228.39 × 6,819.17
  4. Step 4: Simplify right side
    12,484.35x = 117,483,200.00
  5. Step 5: Solve for x
    x = 117,483,200.00/12,484.35
  6. Step 6: Final answer
    x = 9,410.44

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Half scale
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Double scale
Find fourth proportional to 12,485.35, 17,229.76 and 6,820.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.