Home / 53,585.26-80,377.89-18,505.78

Finding the Fourth Proportional to 53,585.26, 80,377.89 and 18,505.78

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Solution

The fourth proportional to 53,585.26, 80,377.89 and 18,505.78 is: 27,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,585.26 : 80,377.89 = 18,505.78 : x
  2. Step 2: Convert to fraction form
    53,585.26/80,377.89 = 18,505.78/x
  3. Step 3: Cross multiply
    53,585.26x = 80,377.89 × 18,505.78
  4. Step 4: Simplify right side
    53,585.26x = 1,487,455,549.20
  5. Step 5: Solve for x
    x = 1,487,455,549.20/53,585.26
  6. Step 6: Final answer
    x = 27,758.67

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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.