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Finding the Fourth Proportional to 69,192.42, 95,472.84 and 38,971.28

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Solution

The fourth proportional to 69,192.42, 95,472.84 and 38,971.28 is: 53,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192.42 : 95,472.84 = 38,971.28 : x
  2. Step 2: Convert to fraction form
    69,192.42/95,472.84 = 38,971.28/x
  3. Step 3: Cross multiply
    69,192.42x = 95,472.84 × 38,971.28
  4. Step 4: Simplify right side
    69,192.42x = 3,720,698,302.67
  5. Step 5: Solve for x
    x = 3,720,698,302.67/69,192.42
  6. Step 6: Final answer
    x = 53,773.21

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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.