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Finding the Fourth Proportional to 23,335.79, 34,854.89 and 21,111.18

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Solution

The fourth proportional to 23,335.79, 34,854.89 and 21,111.18 is: 31,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,335.79 : 34,854.89 = 21,111.18 : x
  2. Step 2: Convert to fraction form
    23,335.79/34,854.89 = 21,111.18/x
  3. Step 3: Cross multiply
    23,335.79x = 34,854.89 × 21,111.18
  4. Step 4: Simplify right side
    23,335.79x = 735,827,751.11
  5. Step 5: Solve for x
    x = 735,827,751.11/23,335.79
  6. Step 6: Final answer
    x = 31,532.16

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.