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Finding the Fourth Proportional to 62,909.61, 86,814.54 and 34,230.12

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Solution

The fourth proportional to 62,909.61, 86,814.54 and 34,230.12 is: 47,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,909.61 : 86,814.54 = 34,230.12 : x
  2. Step 2: Convert to fraction form
    62,909.61/86,814.54 = 34,230.12/x
  3. Step 3: Cross multiply
    62,909.61x = 86,814.54 × 34,230.12
  4. Step 4: Simplify right side
    62,909.61x = 2,971,672,121.94
  5. Step 5: Solve for x
    x = 2,971,672,121.94/62,909.61
  6. Step 6: Final answer
    x = 47,237.17

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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.