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Finding the Fourth Proportional to 9,316.62, 12,772.99 and 9,150.77

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Solution

The fourth proportional to 9,316.62, 12,772.99 and 9,150.77 is: 12,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.62 : 12,772.99 = 9,150.77 : x
  2. Step 2: Convert to fraction form
    9,316.62/12,772.99 = 9,150.77/x
  3. Step 3: Cross multiply
    9,316.62x = 12,772.99 × 9,150.77
  4. Step 4: Simplify right side
    9,316.62x = 116,882,737.07
  5. Step 5: Solve for x
    x = 116,882,737.07/9,316.62
  6. Step 6: Final answer
    x = 12,545.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.