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Finding the Fourth Proportional to 8,592,489.90, 12,885,978.06 and 2,833,928.88

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Solution

The fourth proportional to 8,592,489.90, 12,885,978.06 and 2,833,928.88 is: 4,249,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592,489.90 : 12,885,978.06 = 2,833,928.88 : x
  2. Step 2: Convert to fraction form
    8,592,489.90/12,885,978.06 = 2,833,928.88/x
  3. Step 3: Cross multiply
    8,592,489.90x = 12,885,978.06 × 2,833,928.88
  4. Step 4: Simplify right side
    8,592,489.90x = 36,517,945,371,280.38
  5. Step 5: Solve for x
    x = 36,517,945,371,280.38/8,592,489.90
  6. Step 6: Final answer
    x = 4,249,984.09

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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.