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Finding the Fourth Proportional to 8,784,164.80, 13,154,128.80 and 5,776,062.40

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Solution

The fourth proportional to 8,784,164.80, 13,154,128.80 and 5,776,062.40 is: 8,649,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,164.80 : 13,154,128.80 = 5,776,062.40 : x
  2. Step 2: Convert to fraction form
    8,784,164.80/13,154,128.80 = 5,776,062.40/x
  3. Step 3: Cross multiply
    8,784,164.80x = 13,154,128.80 × 5,776,062.40
  4. Step 4: Simplify right side
    8,784,164.80x = 75,979,068,766,437.12
  5. Step 5: Solve for x
    x = 75,979,068,766,437.12/8,784,164.80
  6. Step 6: Final answer
    x = 8,649,549.56

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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.