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Finding the Fourth Proportional to 8,788,404.20, 13,171,547.10 and 7,793,076.20

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Solution

The fourth proportional to 8,788,404.20, 13,171,547.10 and 7,793,076.20 is: 11,679,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788,404.20 : 13,171,547.10 = 7,793,076.20 : x
  2. Step 2: Convert to fraction form
    8,788,404.20/13,171,547.10 = 7,793,076.20/x
  3. Step 3: Cross multiply
    8,788,404.20x = 13,171,547.10 × 7,793,076.20
  4. Step 4: Simplify right side
    8,788,404.20x = 102,646,870,222,189.02
  5. Step 5: Solve for x
    x = 102,646,870,222,189.02/8,788,404.20
  6. Step 6: Final answer
    x = 11,679,807.61

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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.