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Finding the Fourth Proportional to 10,487.69, 14,473.11 and 5,772.08

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Solution

The fourth proportional to 10,487.69, 14,473.11 and 5,772.08 is: 7,965.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.69 : 14,473.11 = 5,772.08 : x
  2. Step 2: Convert to fraction form
    10,487.69/14,473.11 = 5,772.08/x
  3. Step 3: Cross multiply
    10,487.69x = 14,473.11 × 5,772.08
  4. Step 4: Simplify right side
    10,487.69x = 83,539,861.97
  5. Step 5: Solve for x
    x = 83,539,861.97/10,487.69
  6. Step 6: Final answer
    x = 7,965.52

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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.