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Finding the Fourth Proportional to 32,922, 45,432.48 and 18,018

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Solution

The fourth proportional to 32,922, 45,432.48 and 18,018 is: 24,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,922 : 45,432.48 = 18,018 : x
  2. Step 2: Convert to fraction form
    32,922/45,432.48 = 18,018/x
  3. Step 3: Cross multiply
    32,922x = 45,432.48 × 18,018
  4. Step 4: Simplify right side
    32,922x = 818,602,424.64
  5. Step 5: Solve for x
    x = 818,602,424.64/32,922
  6. Step 6: Final answer
    x = 24,864.91

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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.