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Finding the Fourth Proportional to 10,858.22, 14,995.26 and 9,357.74

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Solution

The fourth proportional to 10,858.22, 14,995.26 and 9,357.74 is: 12,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.22 : 14,995.26 = 9,357.74 : x
  2. Step 2: Convert to fraction form
    10,858.22/14,995.26 = 9,357.74/x
  3. Step 3: Cross multiply
    10,858.22x = 14,995.26 × 9,357.74
  4. Step 4: Simplify right side
    10,858.22x = 140,321,744.31
  5. Step 5: Solve for x
    x = 140,321,744.31/10,858.22
  6. Step 6: Final answer
    x = 12,923.09

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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.