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Finding the Fourth Proportional to 4,934.65, 6,809.20 and 2,810.46

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Solution

The fourth proportional to 4,934.65, 6,809.20 and 2,810.46 is: 3,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,934.65 : 6,809.20 = 2,810.46 : x
  2. Step 2: Convert to fraction form
    4,934.65/6,809.20 = 2,810.46/x
  3. Step 3: Cross multiply
    4,934.65x = 6,809.20 × 2,810.46
  4. Step 4: Simplify right side
    4,934.65x = 19,136,984.23
  5. Step 5: Solve for x
    x = 19,136,984.23/4,934.65
  6. Step 6: Final answer
    x = 3,878.08

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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.