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Finding the Fourth Proportional to 71,639.84, 107,422.62 and 37,924.13

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Solution

The fourth proportional to 71,639.84, 107,422.62 and 37,924.13 is: 56,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,639.84 : 107,422.62 = 37,924.13 : x
  2. Step 2: Convert to fraction form
    71,639.84/107,422.62 = 37,924.13/x
  3. Step 3: Cross multiply
    71,639.84x = 107,422.62 × 37,924.13
  4. Step 4: Simplify right side
    71,639.84x = 4,073,909,405.82
  5. Step 5: Solve for x
    x = 4,073,909,405.82/71,639.84
  6. Step 6: Final answer
    x = 56,866.53

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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.