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Finding the Fourth Proportional to 25,472.61, 35,145.09 and 15,922.22

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Solution

The fourth proportional to 25,472.61, 35,145.09 and 15,922.22 is: 21,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,472.61 : 35,145.09 = 15,922.22 : x
  2. Step 2: Convert to fraction form
    25,472.61/35,145.09 = 15,922.22/x
  3. Step 3: Cross multiply
    25,472.61x = 35,145.09 × 15,922.22
  4. Step 4: Simplify right side
    25,472.61x = 559,587,728.60
  5. Step 5: Solve for x
    x = 559,587,728.60/25,472.61
  6. Step 6: Final answer
    x = 21,968.21

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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.