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Finding the Fourth Proportional to 71,592.76, 107,390.22 and 21,675.16

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Solution

The fourth proportional to 71,592.76, 107,390.22 and 21,675.16 is: 32,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,592.76 : 107,390.22 = 21,675.16 : x
  2. Step 2: Convert to fraction form
    71,592.76/107,390.22 = 21,675.16/x
  3. Step 3: Cross multiply
    71,592.76x = 107,390.22 × 21,675.16
  4. Step 4: Simplify right side
    71,592.76x = 2,327,700,200.94
  5. Step 5: Solve for x
    x = 2,327,700,200.94/71,592.76
  6. Step 6: Final answer
    x = 32,513.07

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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.