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Finding the Fourth Proportional to 8,784,146.80, 13,154,101.80 and 5,776,044.40

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Solution

The fourth proportional to 8,784,146.80, 13,154,101.80 and 5,776,044.40 is: 8,649,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,146.80 : 13,154,101.80 = 5,776,044.40 : x
  2. Step 2: Convert to fraction form
    8,784,146.80/13,154,101.80 = 5,776,044.40/x
  3. Step 3: Cross multiply
    8,784,146.80x = 13,154,101.80 × 5,776,044.40
  4. Step 4: Simplify right side
    8,784,146.80x = 75,978,676,038,919.92
  5. Step 5: Solve for x
    x = 75,978,676,038,919.92/8,784,146.80
  6. Step 6: Final answer
    x = 8,649,522.57

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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.