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Finding the Fourth Proportional to 55,479.84, 83,147.28 and 25,483.20

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Solution

The fourth proportional to 55,479.84, 83,147.28 and 25,483.20 is: 38,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.84 : 83,147.28 = 25,483.20 : x
  2. Step 2: Convert to fraction form
    55,479.84/83,147.28 = 25,483.20/x
  3. Step 3: Cross multiply
    55,479.84x = 83,147.28 × 25,483.20
  4. Step 4: Simplify right side
    55,479.84x = 2,118,858,765.70
  5. Step 5: Solve for x
    x = 2,118,858,765.70/55,479.84
  6. Step 6: Final answer
    x = 38,191.51

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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.