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Finding the Fourth Proportional to 14,970.17, 20,658.56 and 8,256.41

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Solution

The fourth proportional to 14,970.17, 20,658.56 and 8,256.41 is: 11,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.17 : 20,658.56 = 8,256.41 : x
  2. Step 2: Convert to fraction form
    14,970.17/20,658.56 = 8,256.41/x
  3. Step 3: Cross multiply
    14,970.17x = 20,658.56 × 8,256.41
  4. Step 4: Simplify right side
    14,970.17x = 170,565,551.73
  5. Step 5: Solve for x
    x = 170,565,551.73/14,970.17
  6. Step 6: Final answer
    x = 11,393.70

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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.