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Finding the Fourth Proportional to 55,691.76, 83,554.96 and 18,252.16

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Solution

The fourth proportional to 55,691.76, 83,554.96 and 18,252.16 is: 27,383.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691.76 : 83,554.96 = 18,252.16 : x
  2. Step 2: Convert to fraction form
    55,691.76/83,554.96 = 18,252.16/x
  3. Step 3: Cross multiply
    55,691.76x = 83,554.96 × 18,252.16
  4. Step 4: Simplify right side
    55,691.76x = 1,525,058,498.71
  5. Step 5: Solve for x
    x = 1,525,058,498.71/55,691.76
  6. Step 6: Final answer
    x = 27,383.92

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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.