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Finding the Fourth Proportional to 60,722.70, 91,101.90 and 31,161.18

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Solution

The fourth proportional to 60,722.70, 91,101.90 and 31,161.18 is: 46,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,722.70 : 91,101.90 = 31,161.18 : x
  2. Step 2: Convert to fraction form
    60,722.70/91,101.90 = 31,161.18/x
  3. Step 3: Cross multiply
    60,722.70x = 91,101.90 × 31,161.18
  4. Step 4: Simplify right side
    60,722.70x = 2,838,842,704.24
  5. Step 5: Solve for x
    x = 2,838,842,704.24/60,722.70
  6. Step 6: Final answer
    x = 46,750.93

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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.