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Finding the Fourth Proportional to 33,341.68, 45,989.84 and 21,386.08

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Solution

The fourth proportional to 33,341.68, 45,989.84 and 21,386.08 is: 29,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,341.68 : 45,989.84 = 21,386.08 : x
  2. Step 2: Convert to fraction form
    33,341.68/45,989.84 = 21,386.08/x
  3. Step 3: Cross multiply
    33,341.68x = 45,989.84 × 21,386.08
  4. Step 4: Simplify right side
    33,341.68x = 983,542,397.43
  5. Step 5: Solve for x
    x = 983,542,397.43/33,341.68
  6. Step 6: Final answer
    x = 29,498.89

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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.