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Finding the Fourth Proportional to 66,693.81, 92,030.43 and 39,832.59

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Solution

The fourth proportional to 66,693.81, 92,030.43 and 39,832.59 is: 54,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.81 : 92,030.43 = 39,832.59 : x
  2. Step 2: Convert to fraction form
    66,693.81/92,030.43 = 39,832.59/x
  3. Step 3: Cross multiply
    66,693.81x = 92,030.43 × 39,832.59
  4. Step 4: Simplify right side
    66,693.81x = 3,665,810,385.71
  5. Step 5: Solve for x
    x = 3,665,810,385.71/66,693.81
  6. Step 6: Final answer
    x = 54,964.78

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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.