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Finding the Fourth Proportional to 4,976.71, 6,866.87 and 2,852.91

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Solution

The fourth proportional to 4,976.71, 6,866.87 and 2,852.91 is: 3,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.71 : 6,866.87 = 2,852.91 : x
  2. Step 2: Convert to fraction form
    4,976.71/6,866.87 = 2,852.91/x
  3. Step 3: Cross multiply
    4,976.71x = 6,866.87 × 2,852.91
  4. Step 4: Simplify right side
    4,976.71x = 19,590,547.83
  5. Step 5: Solve for x
    x = 19,590,547.83/4,976.71
  6. Step 6: Final answer
    x = 3,936.45

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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.