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Finding the Fourth Proportional to 61,011.68, 91,422.72 and 29,387.68

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Solution

The fourth proportional to 61,011.68, 91,422.72 and 29,387.68 is: 44,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,011.68 : 91,422.72 = 29,387.68 : x
  2. Step 2: Convert to fraction form
    61,011.68/91,422.72 = 29,387.68/x
  3. Step 3: Cross multiply
    61,011.68x = 91,422.72 × 29,387.68
  4. Step 4: Simplify right side
    61,011.68x = 2,686,701,640.09
  5. Step 5: Solve for x
    x = 2,686,701,640.09/61,011.68
  6. Step 6: Final answer
    x = 44,035.86

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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.