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Finding the Fourth Proportional to 61,575.76, 84,974.42 and 33,281.38

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Solution

The fourth proportional to 61,575.76, 84,974.42 and 33,281.38 is: 45,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,575.76 : 84,974.42 = 33,281.38 : x
  2. Step 2: Convert to fraction form
    61,575.76/84,974.42 = 33,281.38/x
  3. Step 3: Cross multiply
    61,575.76x = 84,974.42 × 33,281.38
  4. Step 4: Simplify right side
    61,575.76x = 2,828,065,962.30
  5. Step 5: Solve for x
    x = 2,828,065,962.30/61,575.76
  6. Step 6: Final answer
    x = 45,928.23

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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.