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Finding the Fourth Proportional to 55,616.58, 76,731.84 and 31,726.08

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Solution

The fourth proportional to 55,616.58, 76,731.84 and 31,726.08 is: 43,771.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,616.58 : 76,731.84 = 31,726.08 : x
  2. Step 2: Convert to fraction form
    55,616.58/76,731.84 = 31,726.08/x
  3. Step 3: Cross multiply
    55,616.58x = 76,731.84 × 31,726.08
  4. Step 4: Simplify right side
    55,616.58x = 2,434,400,494.39
  5. Step 5: Solve for x
    x = 2,434,400,494.39/55,616.58
  6. Step 6: Final answer
    x = 43,771.13

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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.