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Finding the Fourth Proportional to 7,007.91, 9,660.86 and 5,513.23

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Solution

The fourth proportional to 7,007.91, 9,660.86 and 5,513.23 is: 7,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.91 : 9,660.86 = 5,513.23 : x
  2. Step 2: Convert to fraction form
    7,007.91/9,660.86 = 5,513.23/x
  3. Step 3: Cross multiply
    7,007.91x = 9,660.86 × 5,513.23
  4. Step 4: Simplify right side
    7,007.91x = 53,262,543.18
  5. Step 5: Solve for x
    x = 53,262,543.18/7,007.91
  6. Step 6: Final answer
    x = 7,600.35

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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.