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Finding the Fourth Proportional to 18,314.71, 25,274.15 and 10,356.91

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Solution

The fourth proportional to 18,314.71, 25,274.15 and 10,356.91 is: 14,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.71 : 25,274.15 = 10,356.91 : x
  2. Step 2: Convert to fraction form
    18,314.71/25,274.15 = 10,356.91/x
  3. Step 3: Cross multiply
    18,314.71x = 25,274.15 × 10,356.91
  4. Step 4: Simplify right side
    18,314.71x = 261,762,045.09
  5. Step 5: Solve for x
    x = 261,762,045.09/18,314.71
  6. Step 6: Final answer
    x = 14,292.45

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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.