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Finding the Fourth Proportional to 60,948.88, 91,425.72 and 18,825.21

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Solution

The fourth proportional to 60,948.88, 91,425.72 and 18,825.21 is: 28,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,948.88 : 91,425.72 = 18,825.21 : x
  2. Step 2: Convert to fraction form
    60,948.88/91,425.72 = 18,825.21/x
  3. Step 3: Cross multiply
    60,948.88x = 91,425.72 × 18,825.21
  4. Step 4: Simplify right side
    60,948.88x = 1,721,108,378.40
  5. Step 5: Solve for x
    x = 1,721,108,378.40/60,948.88
  6. Step 6: Final answer
    x = 28,238.56

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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.