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Finding the Fourth Proportional to 8,862.37, 13,224.13 and 7,931.53

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Solution

The fourth proportional to 8,862.37, 13,224.13 and 7,931.53 is: 11,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.37 : 13,224.13 = 7,931.53 : x
  2. Step 2: Convert to fraction form
    8,862.37/13,224.13 = 7,931.53/x
  3. Step 3: Cross multiply
    8,862.37x = 13,224.13 × 7,931.53
  4. Step 4: Simplify right side
    8,862.37x = 104,887,583.82
  5. Step 5: Solve for x
    x = 104,887,583.82/8,862.37
  6. Step 6: Final answer
    x = 11,835.16

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.