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Finding the Fourth Proportional to 32,886.76, 45,372.97 and 20,126.64

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Solution

The fourth proportional to 32,886.76, 45,372.97 and 20,126.64 is: 27,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,886.76 : 45,372.97 = 20,126.64 : x
  2. Step 2: Convert to fraction form
    32,886.76/45,372.97 = 20,126.64/x
  3. Step 3: Cross multiply
    32,886.76x = 45,372.97 × 20,126.64
  4. Step 4: Simplify right side
    32,886.76x = 913,205,432.92
  5. Step 5: Solve for x
    x = 913,205,432.92/32,886.76
  6. Step 6: Final answer
    x = 27,768.18

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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.