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Finding the Fourth Proportional to 16,681.25, 23,020.13 and 10,393.63

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Solution

The fourth proportional to 16,681.25, 23,020.13 and 10,393.63 is: 14,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,681.25 : 23,020.13 = 10,393.63 : x
  2. Step 2: Convert to fraction form
    16,681.25/23,020.13 = 10,393.63/x
  3. Step 3: Cross multiply
    16,681.25x = 23,020.13 × 10,393.63
  4. Step 4: Simplify right side
    16,681.25x = 239,262,713.77
  5. Step 5: Solve for x
    x = 239,262,713.77/16,681.25
  6. Step 6: Final answer
    x = 14,343.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.