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Finding the Fourth Proportional to 60,091.56, 90,139.59 and 17,972.19

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Solution

The fourth proportional to 60,091.56, 90,139.59 and 17,972.19 is: 26,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,091.56 : 90,139.59 = 17,972.19 : x
  2. Step 2: Convert to fraction form
    60,091.56/90,139.59 = 17,972.19/x
  3. Step 3: Cross multiply
    60,091.56x = 90,139.59 × 17,972.19
  4. Step 4: Simplify right side
    60,091.56x = 1,620,005,838.00
  5. Step 5: Solve for x
    x = 1,620,005,838.00/60,091.56
  6. Step 6: Final answer
    x = 26,958.96

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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.