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Finding the Fourth Proportional to 10,851.66, 14,973.39 and 6,661.26

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Solution

The fourth proportional to 10,851.66, 14,973.39 and 6,661.26 is: 9,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.66 : 14,973.39 = 6,661.26 : x
  2. Step 2: Convert to fraction form
    10,851.66/14,973.39 = 6,661.26/x
  3. Step 3: Cross multiply
    10,851.66x = 14,973.39 × 6,661.26
  4. Step 4: Simplify right side
    10,851.66x = 99,741,643.87
  5. Step 5: Solve for x
    x = 99,741,643.87/10,851.66
  6. Step 6: Final answer
    x = 9,191.37

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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.