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Finding the Fourth Proportional to 32,913, 45,421.08 and 18,009

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Solution

The fourth proportional to 32,913, 45,421.08 and 18,009 is: 24,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,913 : 45,421.08 = 18,009 : x
  2. Step 2: Convert to fraction form
    32,913/45,421.08 = 18,009/x
  3. Step 3: Cross multiply
    32,913x = 45,421.08 × 18,009
  4. Step 4: Simplify right side
    32,913x = 817,988,229.72
  5. Step 5: Solve for x
    x = 817,988,229.72/32,913
  6. Step 6: Final answer
    x = 24,853.04

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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.