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Finding the Fourth Proportional to 5,600.07, 7,719.90 and 3,916.24

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Solution

The fourth proportional to 5,600.07, 7,719.90 and 3,916.24 is: 5,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.07 : 7,719.90 = 3,916.24 : x
  2. Step 2: Convert to fraction form
    5,600.07/7,719.90 = 3,916.24/x
  3. Step 3: Cross multiply
    5,600.07x = 7,719.90 × 3,916.24
  4. Step 4: Simplify right side
    5,600.07x = 30,232,981.18
  5. Step 5: Solve for x
    x = 30,232,981.18/5,600.07
  6. Step 6: Final answer
    x = 5,398.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.