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Finding the Fourth Proportional to 66,895.82, 92,301.80 and 38,585.11

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Solution

The fourth proportional to 66,895.82, 92,301.80 and 38,585.11 is: 53,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,895.82 : 92,301.80 = 38,585.11 : x
  2. Step 2: Convert to fraction form
    66,895.82/92,301.80 = 38,585.11/x
  3. Step 3: Cross multiply
    66,895.82x = 92,301.80 × 38,585.11
  4. Step 4: Simplify right side
    66,895.82x = 3,561,475,181.15
  5. Step 5: Solve for x
    x = 3,561,475,181.15/66,895.82
  6. Step 6: Final answer
    x = 53,239.13

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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.