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Finding the Fourth Proportional to 66,337.60, 99,518.55 and 26,898.70

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Solution

The fourth proportional to 66,337.60, 99,518.55 and 26,898.70 is: 40,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,337.60 : 99,518.55 = 26,898.70 : x
  2. Step 2: Convert to fraction form
    66,337.60/99,518.55 = 26,898.70/x
  3. Step 3: Cross multiply
    66,337.60x = 99,518.55 × 26,898.70
  4. Step 4: Simplify right side
    66,337.60x = 2,676,919,620.89
  5. Step 5: Solve for x
    x = 2,676,919,620.89/66,337.60
  6. Step 6: Final answer
    x = 40,352.98

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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.