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Finding the Fourth Proportional to 2,725.94, 4,088.76 and 876.98

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Solution

The fourth proportional to 2,725.94, 4,088.76 and 876.98 is: 1,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.94 : 4,088.76 = 876.98 : x
  2. Step 2: Convert to fraction form
    2,725.94/4,088.76 = 876.98/x
  3. Step 3: Cross multiply
    2,725.94x = 4,088.76 × 876.98
  4. Step 4: Simplify right side
    2,725.94x = 3,585,760.74
  5. Step 5: Solve for x
    x = 3,585,760.74/2,725.94
  6. Step 6: Final answer
    x = 1,315.42

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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.