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Finding the Fourth Proportional to 39,886.56, 55,031.04 and 23,974.56

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Solution

The fourth proportional to 39,886.56, 55,031.04 and 23,974.56 is: 33,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.56 : 55,031.04 = 23,974.56 : x
  2. Step 2: Convert to fraction form
    39,886.56/55,031.04 = 23,974.56/x
  3. Step 3: Cross multiply
    39,886.56x = 55,031.04 × 23,974.56
  4. Step 4: Simplify right side
    39,886.56x = 1,319,344,970.34
  5. Step 5: Solve for x
    x = 1,319,344,970.34/39,886.56
  6. Step 6: Final answer
    x = 33,077.43

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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.