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Finding the Fourth Proportional to 42,807.44, 64,211.16 and 14,728.19

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Solution

The fourth proportional to 42,807.44, 64,211.16 and 14,728.19 is: 22,092.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,807.44 : 64,211.16 = 14,728.19 : x
  2. Step 2: Convert to fraction form
    42,807.44/64,211.16 = 14,728.19/x
  3. Step 3: Cross multiply
    42,807.44x = 64,211.16 × 14,728.19
  4. Step 4: Simplify right side
    42,807.44x = 945,713,898.78
  5. Step 5: Solve for x
    x = 945,713,898.78/42,807.44
  6. Step 6: Final answer
    x = 22,092.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.