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Finding the Fourth Proportional to 8,933,611.86, 12,329,478.86 and 5,262,338.70

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Solution

The fourth proportional to 8,933,611.86, 12,329,478.86 and 5,262,338.70 is: 7,262,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933,611.86 : 12,329,478.86 = 5,262,338.70 : x
  2. Step 2: Convert to fraction form
    8,933,611.86/12,329,478.86 = 5,262,338.70/x
  3. Step 3: Cross multiply
    8,933,611.86x = 12,329,478.86 × 5,262,338.70
  4. Step 4: Simplify right side
    8,933,611.86x = 64,881,893,729,498.20
  5. Step 5: Solve for x
    x = 64,881,893,729,498.20/8,933,611.86
  6. Step 6: Final answer
    x = 7,262,672.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.