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Finding the Fourth Proportional to 36,478.84, 54,718.28 and 8,776.84

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Solution

The fourth proportional to 36,478.84, 54,718.28 and 8,776.84 is: 13,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.84 : 54,718.28 = 8,776.84 : x
  2. Step 2: Convert to fraction form
    36,478.84/54,718.28 = 8,776.84/x
  3. Step 3: Cross multiply
    36,478.84x = 54,718.28 × 8,776.84
  4. Step 4: Simplify right side
    36,478.84x = 480,253,588.64
  5. Step 5: Solve for x
    x = 480,253,588.64/36,478.84
  6. Step 6: Final answer
    x = 13,165.26

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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.