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Finding the Fourth Proportional to 33,210.80, 45,829.52 and 18,103.13

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Solution

The fourth proportional to 33,210.80, 45,829.52 and 18,103.13 is: 24,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,210.80 : 45,829.52 = 18,103.13 : x
  2. Step 2: Convert to fraction form
    33,210.80/45,829.52 = 18,103.13/x
  3. Step 3: Cross multiply
    33,210.80x = 45,829.52 × 18,103.13
  4. Step 4: Simplify right side
    33,210.80x = 829,657,758.40
  5. Step 5: Solve for x
    x = 829,657,758.40/33,210.80
  6. Step 6: Final answer
    x = 24,981.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.