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Finding the Fourth Proportional to 8,835,396.60, 13,253,094.90 and 7,155,780.60

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Solution

The fourth proportional to 8,835,396.60, 13,253,094.90 and 7,155,780.60 is: 10,733,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835,396.60 : 13,253,094.90 = 7,155,780.60 : x
  2. Step 2: Convert to fraction form
    8,835,396.60/13,253,094.90 = 7,155,780.60/x
  3. Step 3: Cross multiply
    8,835,396.60x = 13,253,094.90 × 7,155,780.60
  4. Step 4: Simplify right side
    8,835,396.60x = 94,836,239,375,378.94
  5. Step 5: Solve for x
    x = 94,836,239,375,378.94/8,835,396.60
  6. Step 6: Final answer
    x = 10,733,670.90

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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.