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Finding the Fourth Proportional to 8,581,362.80, 12,872,044.20 and 4,536,287.60

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Solution

The fourth proportional to 8,581,362.80, 12,872,044.20 and 4,536,287.60 is: 6,804,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581,362.80 : 12,872,044.20 = 4,536,287.60 : x
  2. Step 2: Convert to fraction form
    8,581,362.80/12,872,044.20 = 4,536,287.60/x
  3. Step 3: Cross multiply
    8,581,362.80x = 12,872,044.20 × 4,536,287.60
  4. Step 4: Simplify right side
    8,581,362.80x = 58,391,294,491,111.91
  5. Step 5: Solve for x
    x = 58,391,294,491,111.91/8,581,362.80
  6. Step 6: Final answer
    x = 6,804,431.40

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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.