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Finding the Fourth Proportional to 15,040.88, 22,562.88 and 5,178.96

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Solution

The fourth proportional to 15,040.88, 22,562.88 and 5,178.96 is: 7,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.88 : 22,562.88 = 5,178.96 : x
  2. Step 2: Convert to fraction form
    15,040.88/22,562.88 = 5,178.96/x
  3. Step 3: Cross multiply
    15,040.88x = 22,562.88 × 5,178.96
  4. Step 4: Simplify right side
    15,040.88x = 116,852,253.00
  5. Step 5: Solve for x
    x = 116,852,253.00/15,040.88
  6. Step 6: Final answer
    x = 7,768.98

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1.5x scale

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.