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Finding the Fourth Proportional to 8,737.68, 12,048.42 and 7,608.54

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Solution

The fourth proportional to 8,737.68, 12,048.42 and 7,608.54 is: 10,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.68 : 12,048.42 = 7,608.54 : x
  2. Step 2: Convert to fraction form
    8,737.68/12,048.42 = 7,608.54/x
  3. Step 3: Cross multiply
    8,737.68x = 12,048.42 × 7,608.54
  4. Step 4: Simplify right side
    8,737.68x = 91,670,885.51
  5. Step 5: Solve for x
    x = 91,670,885.51/8,737.68
  6. Step 6: Final answer
    x = 10,491.44

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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.