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Finding the Fourth Proportional to 55,223.80, 82,878.90 and 25,645.30

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Solution

The fourth proportional to 55,223.80, 82,878.90 and 25,645.30 is: 38,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.80 : 82,878.90 = 25,645.30 : x
  2. Step 2: Convert to fraction form
    55,223.80/82,878.90 = 25,645.30/x
  3. Step 3: Cross multiply
    55,223.80x = 82,878.90 × 25,645.30
  4. Step 4: Simplify right side
    55,223.80x = 2,125,454,254.17
  5. Step 5: Solve for x
    x = 2,125,454,254.17/55,223.80
  6. Step 6: Final answer
    x = 38,488.01

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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.