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Finding the Fourth Proportional to 15,986,130.80, 23,979,196.20 and 15,986,130.80

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Solution

The fourth proportional to 15,986,130.80, 23,979,196.20 and 15,986,130.80 is: 23,979,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986,130.80 : 23,979,196.20 = 15,986,130.80 : x
  2. Step 2: Convert to fraction form
    15,986,130.80/23,979,196.20 = 15,986,130.80/x
  3. Step 3: Cross multiply
    15,986,130.80x = 23,979,196.20 × 15,986,130.80
  4. Step 4: Simplify right side
    15,986,130.80x = 383,334,566,932,062.94
  5. Step 5: Solve for x
    x = 383,334,566,932,062.94/15,986,130.80
  6. Step 6: Final answer
    x = 23,979,196.20

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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.