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Finding the Fourth Proportional to 52,330.59, 72,218.12 and 29,978.91

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Solution

The fourth proportional to 52,330.59, 72,218.12 and 29,978.91 is: 41,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,330.59 : 72,218.12 = 29,978.91 : x
  2. Step 2: Convert to fraction form
    52,330.59/72,218.12 = 29,978.91/x
  3. Step 3: Cross multiply
    52,330.59x = 72,218.12 × 29,978.91
  4. Step 4: Simplify right side
    52,330.59x = 2,165,020,369.95
  5. Step 5: Solve for x
    x = 2,165,020,369.95/52,330.59
  6. Step 6: Final answer
    x = 41,371.98

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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.