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Finding the Fourth Proportional to 32,889.86, 45,387.33 and 17,985.86

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Solution

The fourth proportional to 32,889.86, 45,387.33 and 17,985.86 is: 24,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,889.86 : 45,387.33 = 17,985.86 : x
  2. Step 2: Convert to fraction form
    32,889.86/45,387.33 = 17,985.86/x
  3. Step 3: Cross multiply
    32,889.86x = 45,387.33 × 17,985.86
  4. Step 4: Simplify right side
    32,889.86x = 816,330,163.15
  5. Step 5: Solve for x
    x = 816,330,163.15/32,889.86
  6. Step 6: Final answer
    x = 24,820.12

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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.