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Finding the Fourth Proportional to 55,958.64, 83,937.96 and 18,508.65

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Solution

The fourth proportional to 55,958.64, 83,937.96 and 18,508.65 is: 27,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,958.64 : 83,937.96 = 18,508.65 : x
  2. Step 2: Convert to fraction form
    55,958.64/83,937.96 = 18,508.65/x
  3. Step 3: Cross multiply
    55,958.64x = 83,937.96 × 18,508.65
  4. Step 4: Simplify right side
    55,958.64x = 1,553,578,323.35
  5. Step 5: Solve for x
    x = 1,553,578,323.35/55,958.64
  6. Step 6: Final answer
    x = 27,762.98

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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.