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Finding the Fourth Proportional to 32,642.78, 45,046.62 and 18,302.54

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Solution

The fourth proportional to 32,642.78, 45,046.62 and 18,302.54 is: 25,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,642.78 : 45,046.62 = 18,302.54 : x
  2. Step 2: Convert to fraction form
    32,642.78/45,046.62 = 18,302.54/x
  3. Step 3: Cross multiply
    32,642.78x = 45,046.62 × 18,302.54
  4. Step 4: Simplify right side
    32,642.78x = 824,467,339.18
  5. Step 5: Solve for x
    x = 824,467,339.18/32,642.78
  6. Step 6: Final answer
    x = 25,257.27

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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.