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Finding the Fourth Proportional to 15,985,808.80, 23,978,713.20 and 15,985,808.80

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Solution

The fourth proportional to 15,985,808.80, 23,978,713.20 and 15,985,808.80 is: 23,978,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985,808.80 : 23,978,713.20 = 15,985,808.80 : x
  2. Step 2: Convert to fraction form
    15,985,808.80/23,978,713.20 = 15,985,808.80/x
  3. Step 3: Cross multiply
    15,985,808.80x = 23,978,713.20 × 15,985,808.80
  4. Step 4: Simplify right side
    15,985,808.80x = 383,319,124,485,236.19
  5. Step 5: Solve for x
    x = 383,319,124,485,236.19/15,985,808.80
  6. Step 6: Final answer
    x = 23,978,713.20

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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.