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Finding the Fourth Proportional to 12,383.80, 17,095.52 and 7,848.74

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Solution

The fourth proportional to 12,383.80, 17,095.52 and 7,848.74 is: 10,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.80 : 17,095.52 = 7,848.74 : x
  2. Step 2: Convert to fraction form
    12,383.80/17,095.52 = 7,848.74/x
  3. Step 3: Cross multiply
    12,383.80x = 17,095.52 × 7,848.74
  4. Step 4: Simplify right side
    12,383.80x = 134,178,354.01
  5. Step 5: Solve for x
    x = 134,178,354.01/12,383.80
  6. Step 6: Final answer
    x = 10,834.99

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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.