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Finding the Fourth Proportional to 11,338.84, 15,655.23 and 10,140.10

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Solution

The fourth proportional to 11,338.84, 15,655.23 and 10,140.10 is: 14,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338.84 : 15,655.23 = 10,140.10 : x
  2. Step 2: Convert to fraction form
    11,338.84/15,655.23 = 10,140.10/x
  3. Step 3: Cross multiply
    11,338.84x = 15,655.23 × 10,140.10
  4. Step 4: Simplify right side
    11,338.84x = 158,745,597.72
  5. Step 5: Solve for x
    x = 158,745,597.72/11,338.84
  6. Step 6: Final answer
    x = 14,000.16

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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.