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Finding the Fourth Proportional to 2,725.16, 4,088.16 and 993.38

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Solution

The fourth proportional to 2,725.16, 4,088.16 and 993.38 is: 1,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.16 : 4,088.16 = 993.38 : x
  2. Step 2: Convert to fraction form
    2,725.16/4,088.16 = 993.38/x
  3. Step 3: Cross multiply
    2,725.16x = 4,088.16 × 993.38
  4. Step 4: Simplify right side
    2,725.16x = 4,061,075.94
  5. Step 5: Solve for x
    x = 4,061,075.94/2,725.16
  6. Step 6: Final answer
    x = 1,490.22

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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.