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Finding the Fourth Proportional to 25,672.82, 35,428.62 and 14,342.79

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Solution

The fourth proportional to 25,672.82, 35,428.62 and 14,342.79 is: 19,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,672.82 : 35,428.62 = 14,342.79 : x
  2. Step 2: Convert to fraction form
    25,672.82/35,428.62 = 14,342.79/x
  3. Step 3: Cross multiply
    25,672.82x = 35,428.62 × 14,342.79
  4. Step 4: Simplify right side
    25,672.82x = 508,145,256.65
  5. Step 5: Solve for x
    x = 508,145,256.65/25,672.82
  6. Step 6: Final answer
    x = 19,793.12

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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.