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Finding the Fourth Proportional to 2,368.76, 3,553.66 and 725.43

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Solution

The fourth proportional to 2,368.76, 3,553.66 and 725.43 is: 1,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.76 : 3,553.66 = 725.43 : x
  2. Step 2: Convert to fraction form
    2,368.76/3,553.66 = 725.43/x
  3. Step 3: Cross multiply
    2,368.76x = 3,553.66 × 725.43
  4. Step 4: Simplify right side
    2,368.76x = 2,577,931.57
  5. Step 5: Solve for x
    x = 2,577,931.57/2,368.76
  6. Step 6: Final answer
    x = 1,088.30

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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.