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Finding the Fourth Proportional to 60,166.70, 90,258.71 and 20,713.22

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Solution

The fourth proportional to 60,166.70, 90,258.71 and 20,713.22 is: 31,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,166.70 : 90,258.71 = 20,713.22 : x
  2. Step 2: Convert to fraction form
    60,166.70/90,258.71 = 20,713.22/x
  3. Step 3: Cross multiply
    60,166.70x = 90,258.71 × 20,713.22
  4. Step 4: Simplify right side
    60,166.70x = 1,869,548,300.76
  5. Step 5: Solve for x
    x = 1,869,548,300.76/60,166.70
  6. Step 6: Final answer
    x = 31,072.81

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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.