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Finding the Fourth Proportional to 3,176.13, 4,764.51 and 836.16

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Solution

The fourth proportional to 3,176.13, 4,764.51 and 836.16 is: 1,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.13 : 4,764.51 = 836.16 : x
  2. Step 2: Convert to fraction form
    3,176.13/4,764.51 = 836.16/x
  3. Step 3: Cross multiply
    3,176.13x = 4,764.51 × 836.16
  4. Step 4: Simplify right side
    3,176.13x = 3,983,892.68
  5. Step 5: Solve for x
    x = 3,983,892.68/3,176.13
  6. Step 6: Final answer
    x = 1,254.32

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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.