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Finding the Fourth Proportional to 11,668,487.60, 17,502,731.40 and 3,148,810.40

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Solution

The fourth proportional to 11,668,487.60, 17,502,731.40 and 3,148,810.40 is: 4,723,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668,487.60 : 17,502,731.40 = 3,148,810.40 : x
  2. Step 2: Convert to fraction form
    11,668,487.60/17,502,731.40 = 3,148,810.40/x
  3. Step 3: Cross multiply
    11,668,487.60x = 17,502,731.40 × 3,148,810.40
  4. Step 4: Simplify right side
    11,668,487.60x = 55,112,782,660,726.55
  5. Step 5: Solve for x
    x = 55,112,782,660,726.55/11,668,487.60
  6. Step 6: Final answer
    x = 4,723,215.60

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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.