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Finding the Fourth Proportional to 7,007.16, 9,661.98 and 6,845.88

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Solution

The fourth proportional to 7,007.16, 9,661.98 and 6,845.88 is: 9,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.16 : 9,661.98 = 6,845.88 : x
  2. Step 2: Convert to fraction form
    7,007.16/9,661.98 = 6,845.88/x
  3. Step 3: Cross multiply
    7,007.16x = 9,661.98 × 6,845.88
  4. Step 4: Simplify right side
    7,007.16x = 66,144,755.64
  5. Step 5: Solve for x
    x = 66,144,755.64/7,007.16
  6. Step 6: Final answer
    x = 9,439.60

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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.