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Finding the Fourth Proportional to 60,818.40, 83,900.40 and 38,146.08

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Solution

The fourth proportional to 60,818.40, 83,900.40 and 38,146.08 is: 52,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,818.40 : 83,900.40 = 38,146.08 : x
  2. Step 2: Convert to fraction form
    60,818.40/83,900.40 = 38,146.08/x
  3. Step 3: Cross multiply
    60,818.40x = 83,900.40 × 38,146.08
  4. Step 4: Simplify right side
    60,818.40x = 3,200,471,370.43
  5. Step 5: Solve for x
    x = 3,200,471,370.43/60,818.40
  6. Step 6: Final answer
    x = 52,623.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.