Home / 28,586.62-39,440.34-18,522.76

Finding the Fourth Proportional to 28,586.62, 39,440.34 and 18,522.76

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Solution

The fourth proportional to 28,586.62, 39,440.34 and 18,522.76 is: 25,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.62 : 39,440.34 = 18,522.76 : x
  2. Step 2: Convert to fraction form
    28,586.62/39,440.34 = 18,522.76/x
  3. Step 3: Cross multiply
    28,586.62x = 39,440.34 × 18,522.76
  4. Step 4: Simplify right side
    28,586.62x = 730,543,952.14
  5. Step 5: Solve for x
    x = 730,543,952.14/28,586.62
  6. Step 6: Final answer
    x = 25,555.45

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Half scale
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Double scale
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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.