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Finding the Fourth Proportional to 16,868,672.70, 25,303,009.05 and 10,491,380.70

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Solution

The fourth proportional to 16,868,672.70, 25,303,009.05 and 10,491,380.70 is: 15,737,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868,672.70 : 25,303,009.05 = 10,491,380.70 : x
  2. Step 2: Convert to fraction form
    16,868,672.70/25,303,009.05 = 10,491,380.70/x
  3. Step 3: Cross multiply
    16,868,672.70x = 25,303,009.05 × 10,491,380.70
  4. Step 4: Simplify right side
    16,868,672.70x = 265,463,500,799,095.31
  5. Step 5: Solve for x
    x = 265,463,500,799,095.31/16,868,672.70
  6. Step 6: Final answer
    x = 15,737,071.05

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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.