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Finding the Fourth Proportional to 2,364.92, 3,547.56 and 721.59

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Solution

The fourth proportional to 2,364.92, 3,547.56 and 721.59 is: 1,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,364.92 : 3,547.56 = 721.59 : x
  2. Step 2: Convert to fraction form
    2,364.92/3,547.56 = 721.59/x
  3. Step 3: Cross multiply
    2,364.92x = 3,547.56 × 721.59
  4. Step 4: Simplify right side
    2,364.92x = 2,559,883.82
  5. Step 5: Solve for x
    x = 2,559,883.82/2,364.92
  6. Step 6: Final answer
    x = 1,082.44

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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.