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Finding the Fourth Proportional to 34,666.31, 47,839.32 and 18,750.71

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Solution

The fourth proportional to 34,666.31, 47,839.32 and 18,750.71 is: 25,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,666.31 : 47,839.32 = 18,750.71 : x
  2. Step 2: Convert to fraction form
    34,666.31/47,839.32 = 18,750.71/x
  3. Step 3: Cross multiply
    34,666.31x = 47,839.32 × 18,750.71
  4. Step 4: Simplify right side
    34,666.31x = 897,021,335.52
  5. Step 5: Solve for x
    x = 897,021,335.52/34,666.31
  6. Step 6: Final answer
    x = 25,875.88

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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.