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Finding the Fourth Proportional to 43,416.76, 65,134.88 and 15,338.92

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Solution

The fourth proportional to 43,416.76, 65,134.88 and 15,338.92 is: 23,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,416.76 : 65,134.88 = 15,338.92 : x
  2. Step 2: Convert to fraction form
    43,416.76/65,134.88 = 15,338.92/x
  3. Step 3: Cross multiply
    43,416.76x = 65,134.88 × 15,338.92
  4. Step 4: Simplify right side
    43,416.76x = 999,098,713.53
  5. Step 5: Solve for x
    x = 999,098,713.53/43,416.76
  6. Step 6: Final answer
    x = 23,011.82

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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.