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Finding the Fourth Proportional to 55,642.72, 83,461.92 and 22,352.80

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Solution

The fourth proportional to 55,642.72, 83,461.92 and 22,352.80 is: 33,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.72 : 83,461.92 = 22,352.80 : x
  2. Step 2: Convert to fraction form
    55,642.72/83,461.92 = 22,352.80/x
  3. Step 3: Cross multiply
    55,642.72x = 83,461.92 × 22,352.80
  4. Step 4: Simplify right side
    55,642.72x = 1,865,607,605.38
  5. Step 5: Solve for x
    x = 1,865,607,605.38/55,642.72
  6. Step 6: Final answer
    x = 33,528.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.