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Finding the Fourth Proportional to 41,721, 57,574.80 and 22,857.72

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Solution

The fourth proportional to 41,721, 57,574.80 and 22,857.72 is: 31,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,721 : 57,574.80 = 22,857.72 : x
  2. Step 2: Convert to fraction form
    41,721/57,574.80 = 22,857.72/x
  3. Step 3: Cross multiply
    41,721x = 57,574.80 × 22,857.72
  4. Step 4: Simplify right side
    41,721x = 1,316,028,657.46
  5. Step 5: Solve for x
    x = 1,316,028,657.46/41,721
  6. Step 6: Final answer
    x = 31,543.55

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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.