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Finding the Fourth Proportional to 9,807.75, 13,570.20 and 8,551.44

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Solution

The fourth proportional to 9,807.75, 13,570.20 and 8,551.44 is: 11,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,807.75 : 13,570.20 = 8,551.44 : x
  2. Step 2: Convert to fraction form
    9,807.75/13,570.20 = 8,551.44/x
  3. Step 3: Cross multiply
    9,807.75x = 13,570.20 × 8,551.44
  4. Step 4: Simplify right side
    9,807.75x = 116,044,751.09
  5. Step 5: Solve for x
    x = 116,044,751.09/9,807.75
  6. Step 6: Final answer
    x = 11,831.94

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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.