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Finding the Fourth Proportional to 25,125.66, 34,673.46 and 13,947.66

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Solution

The fourth proportional to 25,125.66, 34,673.46 and 13,947.66 is: 19,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,125.66 : 34,673.46 = 13,947.66 : x
  2. Step 2: Convert to fraction form
    25,125.66/34,673.46 = 13,947.66/x
  3. Step 3: Cross multiply
    25,125.66x = 34,673.46 × 13,947.66
  4. Step 4: Simplify right side
    25,125.66x = 483,613,631.10
  5. Step 5: Solve for x
    x = 483,613,631.10/25,125.66
  6. Step 6: Final answer
    x = 19,247.80

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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.