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Finding the Fourth Proportional to 2,916.59, 4,375.53 and 968.76

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Solution

The fourth proportional to 2,916.59, 4,375.53 and 968.76 is: 1,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.59 : 4,375.53 = 968.76 : x
  2. Step 2: Convert to fraction form
    2,916.59/4,375.53 = 968.76/x
  3. Step 3: Cross multiply
    2,916.59x = 4,375.53 × 968.76
  4. Step 4: Simplify right side
    2,916.59x = 4,238,838.44
  5. Step 5: Solve for x
    x = 4,238,838.44/2,916.59
  6. Step 6: Final answer
    x = 1,453.36

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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.