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Finding the Fourth Proportional to 32,805.62, 45,293.49 and 20,248.82

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Solution

The fourth proportional to 32,805.62, 45,293.49 and 20,248.82 is: 27,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,805.62 : 45,293.49 = 20,248.82 : x
  2. Step 2: Convert to fraction form
    32,805.62/45,293.49 = 20,248.82/x
  3. Step 3: Cross multiply
    32,805.62x = 45,293.49 × 20,248.82
  4. Step 4: Simplify right side
    32,805.62x = 917,139,726.18
  5. Step 5: Solve for x
    x = 917,139,726.18/32,805.62
  6. Step 6: Final answer
    x = 27,956.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.