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Finding the Fourth Proportional to 32,690.64, 45,121.14 and 18,552

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Solution

The fourth proportional to 32,690.64, 45,121.14 and 18,552 is: 25,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,690.64 : 45,121.14 = 18,552 : x
  2. Step 2: Convert to fraction form
    32,690.64/45,121.14 = 18,552/x
  3. Step 3: Cross multiply
    32,690.64x = 45,121.14 × 18,552
  4. Step 4: Simplify right side
    32,690.64x = 837,087,389.28
  5. Step 5: Solve for x
    x = 837,087,389.28/32,690.64
  6. Step 6: Final answer
    x = 25,606.33

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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.