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Finding the Fourth Proportional to 83,775.08, 125,662.54 and 21,445.48

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Solution

The fourth proportional to 83,775.08, 125,662.54 and 21,445.48 is: 32,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,775.08 : 125,662.54 = 21,445.48 : x
  2. Step 2: Convert to fraction form
    83,775.08/125,662.54 = 21,445.48/x
  3. Step 3: Cross multiply
    83,775.08x = 125,662.54 × 21,445.48
  4. Step 4: Simplify right side
    83,775.08x = 2,694,893,488.32
  5. Step 5: Solve for x
    x = 2,694,893,488.32/83,775.08
  6. Step 6: Final answer
    x = 32,168.20

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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.