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Finding the Fourth Proportional to 18,101,234.28, 24,978,223.56 and 10,657,718.76

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Solution

The fourth proportional to 18,101,234.28, 24,978,223.56 and 10,657,718.76 is: 14,706,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101,234.28 : 24,978,223.56 = 10,657,718.76 : x
  2. Step 2: Convert to fraction form
    18,101,234.28/24,978,223.56 = 10,657,718.76/x
  3. Step 3: Cross multiply
    18,101,234.28x = 24,978,223.56 × 10,657,718.76
  4. Step 4: Simplify right side
    18,101,234.28x = 266,210,881,826,885.97
  5. Step 5: Solve for x
    x = 266,210,881,826,885.97/18,101,234.28
  6. Step 6: Final answer
    x = 14,706,780.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.