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Finding the Fourth Proportional to 17,602.72, 26,271.84 and 15,220.31

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Solution

The fourth proportional to 17,602.72, 26,271.84 and 15,220.31 is: 22,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,602.72 : 26,271.84 = 15,220.31 : x
  2. Step 2: Convert to fraction form
    17,602.72/26,271.84 = 15,220.31/x
  3. Step 3: Cross multiply
    17,602.72x = 26,271.84 × 15,220.31
  4. Step 4: Simplify right side
    17,602.72x = 399,865,474.79
  5. Step 5: Solve for x
    x = 399,865,474.79/17,602.72
  6. Step 6: Final answer
    x = 22,716.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.