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Finding the Fourth Proportional to 60,575.96, 90,868.62 and 18,459.65

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Solution

The fourth proportional to 60,575.96, 90,868.62 and 18,459.65 is: 27,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,575.96 : 90,868.62 = 18,459.65 : x
  2. Step 2: Convert to fraction form
    60,575.96/90,868.62 = 18,459.65/x
  3. Step 3: Cross multiply
    60,575.96x = 90,868.62 × 18,459.65
  4. Step 4: Simplify right side
    60,575.96x = 1,677,402,921.18
  5. Step 5: Solve for x
    x = 1,677,402,921.18/60,575.96
  6. Step 6: Final answer
    x = 27,690.90

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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.