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Finding the Fourth Proportional to 7,857,000.60, 11,785,500.90 and 7,857,000.60

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Solution

The fourth proportional to 7,857,000.60, 11,785,500.90 and 7,857,000.60 is: 11,785,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857,000.60 : 11,785,500.90 = 7,857,000.60 : x
  2. Step 2: Convert to fraction form
    7,857,000.60/11,785,500.90 = 7,857,000.60/x
  3. Step 3: Cross multiply
    7,857,000.60x = 11,785,500.90 × 7,857,000.60
  4. Step 4: Simplify right side
    7,857,000.60x = 92,598,687,642,600.53
  5. Step 5: Solve for x
    x = 92,598,687,642,600.53/7,857,000.60
  6. Step 6: Final answer
    x = 11,785,500.90

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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.