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Finding the Fourth Proportional to 8,863,959.90, 13,306,437.45 and 5,028,836.70

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Solution

The fourth proportional to 8,863,959.90, 13,306,437.45 and 5,028,836.70 is: 7,549,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863,959.90 : 13,306,437.45 = 5,028,836.70 : x
  2. Step 2: Convert to fraction form
    8,863,959.90/13,306,437.45 = 5,028,836.70/x
  3. Step 3: Cross multiply
    8,863,959.90x = 13,306,437.45 × 5,028,836.70
  4. Step 4: Simplify right side
    8,863,959.90x = 66,915,900,994,814.41
  5. Step 5: Solve for x
    x = 66,915,900,994,814.41/8,863,959.90
  6. Step 6: Final answer
    x = 7,549,210.71

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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.