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Finding the Fourth Proportional to 10,309,869.60, 15,464,658.60 and 3,484,987.80

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Solution

The fourth proportional to 10,309,869.60, 15,464,658.60 and 3,484,987.80 is: 5,227,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309,869.60 : 15,464,658.60 = 3,484,987.80 : x
  2. Step 2: Convert to fraction form
    10,309,869.60/15,464,658.60 = 3,484,987.80/x
  3. Step 3: Cross multiply
    10,309,869.60x = 15,464,658.60 × 3,484,987.80
  4. Step 4: Simplify right side
    10,309,869.60x = 53,894,146,552,165.08
  5. Step 5: Solve for x
    x = 53,894,146,552,165.08/10,309,869.60
  6. Step 6: Final answer
    x = 5,227,432.42

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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.