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Finding the Fourth Proportional to 60,679.74, 91,024.22 and 20,686.30

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Solution

The fourth proportional to 60,679.74, 91,024.22 and 20,686.30 is: 31,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,679.74 : 91,024.22 = 20,686.30 : x
  2. Step 2: Convert to fraction form
    60,679.74/91,024.22 = 20,686.30/x
  3. Step 3: Cross multiply
    60,679.74x = 91,024.22 × 20,686.30
  4. Step 4: Simplify right side
    60,679.74x = 1,882,954,322.19
  5. Step 5: Solve for x
    x = 1,882,954,322.19/60,679.74
  6. Step 6: Final answer
    x = 31,031.02

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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.