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Finding the Fourth Proportional to 62,672.32, 86,487.92 and 34,378.21

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Solution

The fourth proportional to 62,672.32, 86,487.92 and 34,378.21 is: 47,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,672.32 : 86,487.92 = 34,378.21 : x
  2. Step 2: Convert to fraction form
    62,672.32/86,487.92 = 34,378.21/x
  3. Step 3: Cross multiply
    62,672.32x = 86,487.92 × 34,378.21
  4. Step 4: Simplify right side
    62,672.32x = 2,973,299,876.22
  5. Step 5: Solve for x
    x = 2,973,299,876.22/62,672.32
  6. Step 6: Final answer
    x = 47,441.99

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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.