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Finding the Fourth Proportional to 25,086.70, 34,643.03 and 16,149.70

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Solution

The fourth proportional to 25,086.70, 34,643.03 and 16,149.70 is: 22,301.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,086.70 : 34,643.03 = 16,149.70 : x
  2. Step 2: Convert to fraction form
    25,086.70/34,643.03 = 16,149.70/x
  3. Step 3: Cross multiply
    25,086.70x = 34,643.03 × 16,149.70
  4. Step 4: Simplify right side
    25,086.70x = 559,474,541.59
  5. Step 5: Solve for x
    x = 559,474,541.59/25,086.70
  6. Step 6: Final answer
    x = 22,301.64

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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.