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Finding the Fourth Proportional to 13,588.58, 18,751.44 and 7,924.25

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Solution

The fourth proportional to 13,588.58, 18,751.44 and 7,924.25 is: 10,935.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.58 : 18,751.44 = 7,924.25 : x
  2. Step 2: Convert to fraction form
    13,588.58/18,751.44 = 7,924.25/x
  3. Step 3: Cross multiply
    13,588.58x = 18,751.44 × 7,924.25
  4. Step 4: Simplify right side
    13,588.58x = 148,591,004.66
  5. Step 5: Solve for x
    x = 148,591,004.66/13,588.58
  6. Step 6: Final answer
    x = 10,935.00

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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.