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Finding the Fourth Proportional to 62,940.20, 94,424.19 and 20,833.40

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Solution

The fourth proportional to 62,940.20, 94,424.19 and 20,833.40 is: 31,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,940.20 : 94,424.19 = 20,833.40 : x
  2. Step 2: Convert to fraction form
    62,940.20/94,424.19 = 20,833.40/x
  3. Step 3: Cross multiply
    62,940.20x = 94,424.19 × 20,833.40
  4. Step 4: Simplify right side
    62,940.20x = 1,967,176,919.95
  5. Step 5: Solve for x
    x = 1,967,176,919.95/62,940.20
  6. Step 6: Final answer
    x = 31,254.70

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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.