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Finding the Fourth Proportional to 53,763.78, 80,652.94 and 18,698.88

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Solution

The fourth proportional to 53,763.78, 80,652.94 and 18,698.88 is: 28,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,763.78 : 80,652.94 = 18,698.88 : x
  2. Step 2: Convert to fraction form
    53,763.78/80,652.94 = 18,698.88/x
  3. Step 3: Cross multiply
    53,763.78x = 80,652.94 × 18,698.88
  4. Step 4: Simplify right side
    53,763.78x = 1,508,119,646.71
  5. Step 5: Solve for x
    x = 1,508,119,646.71/53,763.78
  6. Step 6: Final answer
    x = 28,050.85

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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.