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Finding the Fourth Proportional to 7,286,999.60, 10,930,499.40 and 7,180,711.40

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Solution

The fourth proportional to 7,286,999.60, 10,930,499.40 and 7,180,711.40 is: 10,771,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286,999.60 : 10,930,499.40 = 7,180,711.40 : x
  2. Step 2: Convert to fraction form
    7,286,999.60/10,930,499.40 = 7,180,711.40/x
  3. Step 3: Cross multiply
    7,286,999.60x = 10,930,499.40 × 7,180,711.40
  4. Step 4: Simplify right side
    7,286,999.60x = 78,488,761,649,273.17
  5. Step 5: Solve for x
    x = 78,488,761,649,273.17/7,286,999.60
  6. Step 6: Final answer
    x = 10,771,067.10

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1.5x scale

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.