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Finding the Fourth Proportional to 55,246.88, 82,875.78 and 21,959.52

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Solution

The fourth proportional to 55,246.88, 82,875.78 and 21,959.52 is: 32,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,246.88 : 82,875.78 = 21,959.52 : x
  2. Step 2: Convert to fraction form
    55,246.88/82,875.78 = 21,959.52/x
  3. Step 3: Cross multiply
    55,246.88x = 82,875.78 × 21,959.52
  4. Step 4: Simplify right side
    55,246.88x = 1,819,912,348.43
  5. Step 5: Solve for x
    x = 1,819,912,348.43/55,246.88
  6. Step 6: Final answer
    x = 32,941.45

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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.