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Finding the Fourth Proportional to 6,263.69, 8,645.45 and 3,612.69

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Solution

The fourth proportional to 6,263.69, 8,645.45 and 3,612.69 is: 4,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.69 : 8,645.45 = 3,612.69 : x
  2. Step 2: Convert to fraction form
    6,263.69/8,645.45 = 3,612.69/x
  3. Step 3: Cross multiply
    6,263.69x = 8,645.45 × 3,612.69
  4. Step 4: Simplify right side
    6,263.69x = 31,233,312.70
  5. Step 5: Solve for x
    x = 31,233,312.70/6,263.69
  6. Step 6: Final answer
    x = 4,986.41

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Half scale
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Double scale
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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.