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Finding the Fourth Proportional to 66,354.80, 91,568.04 and 38,058.68

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Solution

The fourth proportional to 66,354.80, 91,568.04 and 38,058.68 is: 52,520.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,354.80 : 91,568.04 = 38,058.68 : x
  2. Step 2: Convert to fraction form
    66,354.80/91,568.04 = 38,058.68/x
  3. Step 3: Cross multiply
    66,354.80x = 91,568.04 × 38,058.68
  4. Step 4: Simplify right side
    66,354.80x = 3,484,958,732.59
  5. Step 5: Solve for x
    x = 3,484,958,732.59/66,354.80
  6. Step 6: Final answer
    x = 52,520.07

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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.