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Finding the Fourth Proportional to 4,866.97, 6,714.84 and 2,878.18

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Solution

The fourth proportional to 4,866.97, 6,714.84 and 2,878.18 is: 3,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.97 : 6,714.84 = 2,878.18 : x
  2. Step 2: Convert to fraction form
    4,866.97/6,714.84 = 2,878.18/x
  3. Step 3: Cross multiply
    4,866.97x = 6,714.84 × 2,878.18
  4. Step 4: Simplify right side
    4,866.97x = 19,326,518.19
  5. Step 5: Solve for x
    x = 19,326,518.19/4,866.97
  6. Step 6: Final answer
    x = 3,970.95

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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.