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Finding the Fourth Proportional to 9,358.40, 12,915.56 and 5,726.56

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Solution

The fourth proportional to 9,358.40, 12,915.56 and 5,726.56 is: 7,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.40 : 12,915.56 = 5,726.56 : x
  2. Step 2: Convert to fraction form
    9,358.40/12,915.56 = 5,726.56/x
  3. Step 3: Cross multiply
    9,358.40x = 12,915.56 × 5,726.56
  4. Step 4: Simplify right side
    9,358.40x = 73,961,729.27
  5. Step 5: Solve for x
    x = 73,961,729.27/9,358.40
  6. Step 6: Final answer
    x = 7,903.25

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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.