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Finding the Fourth Proportional to 66,959.56, 92,381.31 and 38,258.63

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Solution

The fourth proportional to 66,959.56, 92,381.31 and 38,258.63 is: 52,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959.56 : 92,381.31 = 38,258.63 : x
  2. Step 2: Convert to fraction form
    66,959.56/92,381.31 = 38,258.63/x
  3. Step 3: Cross multiply
    66,959.56x = 92,381.31 × 38,258.63
  4. Step 4: Simplify right side
    66,959.56x = 3,534,382,358.21
  5. Step 5: Solve for x
    x = 3,534,382,358.21/66,959.56
  6. Step 6: Final answer
    x = 52,783.83

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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.