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Finding the Fourth Proportional to 1,757.32, 2,633.90 and 715.93

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Solution

The fourth proportional to 1,757.32, 2,633.90 and 715.93 is: 1,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.32 : 2,633.90 = 715.93 : x
  2. Step 2: Convert to fraction form
    1,757.32/2,633.90 = 715.93/x
  3. Step 3: Cross multiply
    1,757.32x = 2,633.90 × 715.93
  4. Step 4: Simplify right side
    1,757.32x = 1,885,688.03
  5. Step 5: Solve for x
    x = 1,885,688.03/1,757.32
  6. Step 6: Final answer
    x = 1,073.05

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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.