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Finding the Fourth Proportional to 22,693.84, 31,312.86 and 13,260.58

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Solution

The fourth proportional to 22,693.84, 31,312.86 and 13,260.58 is: 18,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.84 : 31,312.86 = 13,260.58 : x
  2. Step 2: Convert to fraction form
    22,693.84/31,312.86 = 13,260.58/x
  3. Step 3: Cross multiply
    22,693.84x = 31,312.86 × 13,260.58
  4. Step 4: Simplify right side
    22,693.84x = 415,226,685.06
  5. Step 5: Solve for x
    x = 415,226,685.06/22,693.84
  6. Step 6: Final answer
    x = 18,296.89

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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.