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Finding the Fourth Proportional to 7,192.68, 9,925.87 and 4,048.87

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Solution

The fourth proportional to 7,192.68, 9,925.87 and 4,048.87 is: 5,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.68 : 9,925.87 = 4,048.87 : x
  2. Step 2: Convert to fraction form
    7,192.68/9,925.87 = 4,048.87/x
  3. Step 3: Cross multiply
    7,192.68x = 9,925.87 × 4,048.87
  4. Step 4: Simplify right side
    7,192.68x = 40,188,557.27
  5. Step 5: Solve for x
    x = 40,188,557.27/7,192.68
  6. Step 6: Final answer
    x = 5,587.42

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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.