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Finding the Fourth Proportional to 58,765.72, 88,154.84 and 18,770.72

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Solution

The fourth proportional to 58,765.72, 88,154.84 and 18,770.72 is: 28,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,765.72 : 88,154.84 = 18,770.72 : x
  2. Step 2: Convert to fraction form
    58,765.72/88,154.84 = 18,770.72/x
  3. Step 3: Cross multiply
    58,765.72x = 88,154.84 × 18,770.72
  4. Step 4: Simplify right side
    58,765.72x = 1,654,729,818.28
  5. Step 5: Solve for x
    x = 1,654,729,818.28/58,765.72
  6. Step 6: Final answer
    x = 28,158.08

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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.