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Finding the Fourth Proportional to 32,760, 45,209.76 and 18,613.44

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Solution

The fourth proportional to 32,760, 45,209.76 and 18,613.44 is: 25,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,760 : 45,209.76 = 18,613.44 : x
  2. Step 2: Convert to fraction form
    32,760/45,209.76 = 18,613.44/x
  3. Step 3: Cross multiply
    32,760x = 45,209.76 × 18,613.44
  4. Step 4: Simplify right side
    32,760x = 841,509,155.17
  5. Step 5: Solve for x
    x = 841,509,155.17/32,760
  6. Step 6: Final answer
    x = 25,687.09

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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.