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Finding the Fourth Proportional to 39,873.64, 55,003.64 and 27,954.76

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Solution

The fourth proportional to 39,873.64, 55,003.64 and 27,954.76 is: 38,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.64 : 55,003.64 = 27,954.76 : x
  2. Step 2: Convert to fraction form
    39,873.64/55,003.64 = 27,954.76/x
  3. Step 3: Cross multiply
    39,873.64x = 55,003.64 × 27,954.76
  4. Step 4: Simplify right side
    39,873.64x = 1,537,613,555.33
  5. Step 5: Solve for x
    x = 1,537,613,555.33/39,873.64
  6. Step 6: Final answer
    x = 38,562.16

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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.