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Finding the Fourth Proportional to 36,776.99, 55,158.86 and 15,728.87

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Solution

The fourth proportional to 36,776.99, 55,158.86 and 15,728.87 is: 23,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,776.99 : 55,158.86 = 15,728.87 : x
  2. Step 2: Convert to fraction form
    36,776.99/55,158.86 = 15,728.87/x
  3. Step 3: Cross multiply
    36,776.99x = 55,158.86 × 15,728.87
  4. Step 4: Simplify right side
    36,776.99x = 867,586,538.29
  5. Step 5: Solve for x
    x = 867,586,538.29/36,776.99
  6. Step 6: Final answer
    x = 23,590.47

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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.