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Finding the Fourth Proportional to 11,656,721.40, 17,485,082.10 and 11,656,721.40

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Solution

The fourth proportional to 11,656,721.40, 17,485,082.10 and 11,656,721.40 is: 17,485,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656,721.40 : 17,485,082.10 = 11,656,721.40 : x
  2. Step 2: Convert to fraction form
    11,656,721.40/17,485,082.10 = 11,656,721.40/x
  3. Step 3: Cross multiply
    11,656,721.40x = 17,485,082.10 × 11,656,721.40
  4. Step 4: Simplify right side
    11,656,721.40x = 203,818,730,695,826.97
  5. Step 5: Solve for x
    x = 203,818,730,695,826.97/11,656,721.40
  6. Step 6: Final answer
    x = 17,485,082.10

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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.