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Finding the Fourth Proportional to 59,314.80, 88,986.40 and 19,872.08

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Solution

The fourth proportional to 59,314.80, 88,986.40 and 19,872.08 is: 29,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,314.80 : 88,986.40 = 19,872.08 : x
  2. Step 2: Convert to fraction form
    59,314.80/88,986.40 = 19,872.08/x
  3. Step 3: Cross multiply
    59,314.80x = 88,986.40 × 19,872.08
  4. Step 4: Simplify right side
    59,314.80x = 1,768,344,859.71
  5. Step 5: Solve for x
    x = 1,768,344,859.71/59,314.80
  6. Step 6: Final answer
    x = 29,812.88

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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.