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Finding the Fourth Proportional to 8,708,772.30, 13,047,412.05 and 7,449,060.30

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Solution

The fourth proportional to 8,708,772.30, 13,047,412.05 and 7,449,060.30 is: 11,160,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708,772.30 : 13,047,412.05 = 7,449,060.30 : x
  2. Step 2: Convert to fraction form
    8,708,772.30/13,047,412.05 = 7,449,060.30/x
  3. Step 3: Cross multiply
    8,708,772.30x = 13,047,412.05 × 7,449,060.30
  4. Step 4: Simplify right side
    8,708,772.30x = 97,190,959,119,396.62
  5. Step 5: Solve for x
    x = 97,190,959,119,396.62/8,708,772.30
  6. Step 6: Final answer
    x = 11,160,121.75

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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.