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Finding the Fourth Proportional to 32,858.78, 45,345.54 and 18,711.68

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Solution

The fourth proportional to 32,858.78, 45,345.54 and 18,711.68 is: 25,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,858.78 : 45,345.54 = 18,711.68 : x
  2. Step 2: Convert to fraction form
    32,858.78/45,345.54 = 18,711.68/x
  3. Step 3: Cross multiply
    32,858.78x = 45,345.54 × 18,711.68
  4. Step 4: Simplify right side
    32,858.78x = 848,491,233.91
  5. Step 5: Solve for x
    x = 848,491,233.91/32,858.78
  6. Step 6: Final answer
    x = 25,822.36

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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.