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Finding the Fourth Proportional to 55,358.64, 83,037.96 and 13,805.64

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Solution

The fourth proportional to 55,358.64, 83,037.96 and 13,805.64 is: 20,708.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.64 : 83,037.96 = 13,805.64 : x
  2. Step 2: Convert to fraction form
    55,358.64/83,037.96 = 13,805.64/x
  3. Step 3: Cross multiply
    55,358.64x = 83,037.96 × 13,805.64
  4. Step 4: Simplify right side
    55,358.64x = 1,146,392,182.09
  5. Step 5: Solve for x
    x = 1,146,392,182.09/55,358.64
  6. Step 6: Final answer
    x = 20,708.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.