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Finding the Fourth Proportional to 8,687,915.04, 11,946,807.48 and 7,540,002.48

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Solution

The fourth proportional to 8,687,915.04, 11,946,807.48 and 7,540,002.48 is: 10,368,305.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687,915.04 : 11,946,807.48 = 7,540,002.48 : x
  2. Step 2: Convert to fraction form
    8,687,915.04/11,946,807.48 = 7,540,002.48/x
  3. Step 3: Cross multiply
    8,687,915.04x = 11,946,807.48 × 7,540,002.48
  4. Step 4: Simplify right side
    8,687,915.04x = 90,078,958,027,282.56
  5. Step 5: Solve for x
    x = 90,078,958,027,282.56/8,687,915.04
  6. Step 6: Final answer
    x = 10,368,305.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.