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Finding the Fourth Proportional to 12,331,055.70, 17,291,821.50 and 12,331,055.70

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Solution

The fourth proportional to 12,331,055.70, 17,291,821.50 and 12,331,055.70 is: 17,291,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331,055.70 : 17,291,821.50 = 12,331,055.70 : x
  2. Step 2: Convert to fraction form
    12,331,055.70/17,291,821.50 = 12,331,055.70/x
  3. Step 3: Cross multiply
    12,331,055.70x = 17,291,821.50 × 12,331,055.70
  4. Step 4: Simplify right side
    12,331,055.70x = 213,226,414,070,957.53
  5. Step 5: Solve for x
    x = 213,226,414,070,957.53/12,331,055.70
  6. Step 6: Final answer
    x = 17,291,821.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.