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Finding the Fourth Proportional to 38,865.80, 58,266.70 and 16,696.20

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Solution

The fourth proportional to 38,865.80, 58,266.70 and 16,696.20 is: 25,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,865.80 : 58,266.70 = 16,696.20 : x
  2. Step 2: Convert to fraction form
    38,865.80/58,266.70 = 16,696.20/x
  3. Step 3: Cross multiply
    38,865.80x = 58,266.70 × 16,696.20
  4. Step 4: Simplify right side
    38,865.80x = 972,832,476.54
  5. Step 5: Solve for x
    x = 972,832,476.54/38,865.80
  6. Step 6: Final answer
    x = 25,030.55

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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.