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Finding the Fourth Proportional to 32,390.64, 44,698.88 and 18,248.04

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Solution

The fourth proportional to 32,390.64, 44,698.88 and 18,248.04 is: 25,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,390.64 : 44,698.88 = 18,248.04 : x
  2. Step 2: Convert to fraction form
    32,390.64/44,698.88 = 18,248.04/x
  3. Step 3: Cross multiply
    32,390.64x = 44,698.88 × 18,248.04
  4. Step 4: Simplify right side
    32,390.64x = 815,666,950.20
  5. Step 5: Solve for x
    x = 815,666,950.20/32,390.64
  6. Step 6: Final answer
    x = 25,182.18

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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.