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Finding the Fourth Proportional to 10,955.39, 15,130.90 and 7,364.11

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Solution

The fourth proportional to 10,955.39, 15,130.90 and 7,364.11 is: 10,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.39 : 15,130.90 = 7,364.11 : x
  2. Step 2: Convert to fraction form
    10,955.39/15,130.90 = 7,364.11/x
  3. Step 3: Cross multiply
    10,955.39x = 15,130.90 × 7,364.11
  4. Step 4: Simplify right side
    10,955.39x = 111,425,612.00
  5. Step 5: Solve for x
    x = 111,425,612.00/10,955.39
  6. Step 6: Final answer
    x = 10,170.85

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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.