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Finding the Fourth Proportional to 8,069.68, 11,138.04 and 4,928.48

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Solution

The fourth proportional to 8,069.68, 11,138.04 and 4,928.48 is: 6,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.68 : 11,138.04 = 4,928.48 : x
  2. Step 2: Convert to fraction form
    8,069.68/11,138.04 = 4,928.48/x
  3. Step 3: Cross multiply
    8,069.68x = 11,138.04 × 4,928.48
  4. Step 4: Simplify right side
    8,069.68x = 54,893,607.38
  5. Step 5: Solve for x
    x = 54,893,607.38/8,069.68
  6. Step 6: Final answer
    x = 6,802.45

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Half scale
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Double scale
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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.