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Finding the Fourth Proportional to 15,518,882.15, 23,278,323.23 and 15,518,882.15

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Solution

The fourth proportional to 15,518,882.15, 23,278,323.23 and 15,518,882.15 is: 23,278,323.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518,882.15 : 23,278,323.23 = 15,518,882.15 : x
  2. Step 2: Convert to fraction form
    15,518,882.15/23,278,323.23 = 15,518,882.15/x
  3. Step 3: Cross multiply
    15,518,882.15x = 23,278,323.23 × 15,518,882.15
  4. Step 4: Simplify right side
    15,518,882.15x = 361,253,554,855,977.38
  5. Step 5: Solve for x
    x = 361,253,554,855,977.38/15,518,882.15
  6. Step 6: Final answer
    x = 23,278,323.23

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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.