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Finding the Fourth Proportional to 6,653.70, 9,965.43 and 5,332.86

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Solution

The fourth proportional to 6,653.70, 9,965.43 and 5,332.86 is: 7,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.70 : 9,965.43 = 5,332.86 : x
  2. Step 2: Convert to fraction form
    6,653.70/9,965.43 = 5,332.86/x
  3. Step 3: Cross multiply
    6,653.70x = 9,965.43 × 5,332.86
  4. Step 4: Simplify right side
    6,653.70x = 53,144,243.03
  5. Step 5: Solve for x
    x = 53,144,243.03/6,653.70
  6. Step 6: Final answer
    x = 7,987.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.