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Finding the Fourth Proportional to 60,834.60, 91,235.70 and 18,714.60

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Solution

The fourth proportional to 60,834.60, 91,235.70 and 18,714.60 is: 28,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,834.60 : 91,235.70 = 18,714.60 : x
  2. Step 2: Convert to fraction form
    60,834.60/91,235.70 = 18,714.60/x
  3. Step 3: Cross multiply
    60,834.60x = 91,235.70 × 18,714.60
  4. Step 4: Simplify right side
    60,834.60x = 1,707,439,631.22
  5. Step 5: Solve for x
    x = 1,707,439,631.22/60,834.60
  6. Step 6: Final answer
    x = 28,066.92

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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.