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Finding the Fourth Proportional to 71,693.16, 107,543.98 and 21,774.92

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Solution

The fourth proportional to 71,693.16, 107,543.98 and 21,774.92 is: 32,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.16 : 107,543.98 = 21,774.92 : x
  2. Step 2: Convert to fraction form
    71,693.16/107,543.98 = 21,774.92/x
  3. Step 3: Cross multiply
    71,693.16x = 107,543.98 × 21,774.92
  4. Step 4: Simplify right side
    71,693.16x = 2,341,761,560.98
  5. Step 5: Solve for x
    x = 2,341,761,560.98/71,693.16
  6. Step 6: Final answer
    x = 32,663.67

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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.