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Finding the Fourth Proportional to 3,176.91, 4,384.13 and 1,934.91

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Solution

The fourth proportional to 3,176.91, 4,384.13 and 1,934.91 is: 2,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.91 : 4,384.13 = 1,934.91 : x
  2. Step 2: Convert to fraction form
    3,176.91/4,384.13 = 1,934.91/x
  3. Step 3: Cross multiply
    3,176.91x = 4,384.13 × 1,934.91
  4. Step 4: Simplify right side
    3,176.91x = 8,482,901.82
  5. Step 5: Solve for x
    x = 8,482,901.82/3,176.91
  6. Step 6: Final answer
    x = 2,670.17

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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.