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Finding the Fourth Proportional to 36,697.20, 55,045.80 and 8,995.20

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Solution

The fourth proportional to 36,697.20, 55,045.80 and 8,995.20 is: 13,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,697.20 : 55,045.80 = 8,995.20 : x
  2. Step 2: Convert to fraction form
    36,697.20/55,045.80 = 8,995.20/x
  3. Step 3: Cross multiply
    36,697.20x = 55,045.80 × 8,995.20
  4. Step 4: Simplify right side
    36,697.20x = 495,147,980.16
  5. Step 5: Solve for x
    x = 495,147,980.16/36,697.20
  6. Step 6: Final answer
    x = 13,492.80

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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.