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Finding the Fourth Proportional to 9,318,641.76, 13,978,916.88 and 3,566,213.88

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Solution

The fourth proportional to 9,318,641.76, 13,978,916.88 and 3,566,213.88 is: 5,349,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318,641.76 : 13,978,916.88 = 3,566,213.88 : x
  2. Step 2: Convert to fraction form
    9,318,641.76/13,978,916.88 = 3,566,213.88/x
  3. Step 3: Cross multiply
    9,318,641.76x = 13,978,916.88 × 3,566,213.88
  4. Step 4: Simplify right side
    9,318,641.76x = 49,851,807,404,822.30
  5. Step 5: Solve for x
    x = 49,851,807,404,822.30/9,318,641.76
  6. Step 6: Final answer
    x = 5,349,686.00

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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.