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Finding the Fourth Proportional to 15,142.01, 22,713.11 and 5,281.25

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Solution

The fourth proportional to 15,142.01, 22,713.11 and 5,281.25 is: 7,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.01 : 22,713.11 = 5,281.25 : x
  2. Step 2: Convert to fraction form
    15,142.01/22,713.11 = 5,281.25/x
  3. Step 3: Cross multiply
    15,142.01x = 22,713.11 × 5,281.25
  4. Step 4: Simplify right side
    15,142.01x = 119,953,472.22
  5. Step 5: Solve for x
    x = 119,953,472.22/15,142.01
  6. Step 6: Final answer
    x = 7,921.90

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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.