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Finding the Fourth Proportional to 2,913.84, 4,372.50 and 1,064.76

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Solution

The fourth proportional to 2,913.84, 4,372.50 and 1,064.76 is: 1,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.84 : 4,372.50 = 1,064.76 : x
  2. Step 2: Convert to fraction form
    2,913.84/4,372.50 = 1,064.76/x
  3. Step 3: Cross multiply
    2,913.84x = 4,372.50 × 1,064.76
  4. Step 4: Simplify right side
    2,913.84x = 4,655,663.10
  5. Step 5: Solve for x
    x = 4,655,663.10/2,913.84
  6. Step 6: Final answer
    x = 1,597.78

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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.