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Finding the Fourth Proportional to 40,357.68, 55,721.04 and 25,256.46

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Solution

The fourth proportional to 40,357.68, 55,721.04 and 25,256.46 is: 34,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,357.68 : 55,721.04 = 25,256.46 : x
  2. Step 2: Convert to fraction form
    40,357.68/55,721.04 = 25,256.46/x
  3. Step 3: Cross multiply
    40,357.68x = 55,721.04 × 25,256.46
  4. Step 4: Simplify right side
    40,357.68x = 1,407,316,217.92
  5. Step 5: Solve for x
    x = 1,407,316,217.92/40,357.68
  6. Step 6: Final answer
    x = 34,871.09

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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.