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Finding the Fourth Proportional to 10,452,620.70, 15,678,931.05 and 10,452,620.70

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Solution

The fourth proportional to 10,452,620.70, 15,678,931.05 and 10,452,620.70 is: 15,678,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,452,620.70 : 15,678,931.05 = 10,452,620.70 : x
  2. Step 2: Convert to fraction form
    10,452,620.70/15,678,931.05 = 10,452,620.70/x
  3. Step 3: Cross multiply
    10,452,620.70x = 15,678,931.05 × 10,452,620.70
  4. Step 4: Simplify right side
    10,452,620.70x = 163,885,919,247,102.72
  5. Step 5: Solve for x
    x = 163,885,919,247,102.72/10,452,620.70
  6. Step 6: Final answer
    x = 15,678,931.05

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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.