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Finding the Fourth Proportional to 7,474,956.30, 10,472,024.70 and 7,474,956.30

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Solution

The fourth proportional to 7,474,956.30, 10,472,024.70 and 7,474,956.30 is: 10,472,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474,956.30 : 10,472,024.70 = 7,474,956.30 : x
  2. Step 2: Convert to fraction form
    7,474,956.30/10,472,024.70 = 7,474,956.30/x
  3. Step 3: Cross multiply
    7,474,956.30x = 10,472,024.70 × 7,474,956.30
  4. Step 4: Simplify right side
    7,474,956.30x = 78,277,927,005,020.61
  5. Step 5: Solve for x
    x = 78,277,927,005,020.61/7,474,956.30
  6. Step 6: Final answer
    x = 10,472,024.70

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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.