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Finding the Fourth Proportional to 13,009.43, 17,952.95 and 7,041.05

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Solution

The fourth proportional to 13,009.43, 17,952.95 and 7,041.05 is: 9,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.43 : 17,952.95 = 7,041.05 : x
  2. Step 2: Convert to fraction form
    13,009.43/17,952.95 = 7,041.05/x
  3. Step 3: Cross multiply
    13,009.43x = 17,952.95 × 7,041.05
  4. Step 4: Simplify right side
    13,009.43x = 126,407,618.60
  5. Step 5: Solve for x
    x = 126,407,618.60/13,009.43
  6. Step 6: Final answer
    x = 9,716.61

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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.