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Finding the Fourth Proportional to 13,009.62, 17,953.13 and 7,041.15

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Solution

The fourth proportional to 13,009.62, 17,953.13 and 7,041.15 is: 9,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.62 : 17,953.13 = 7,041.15 : x
  2. Step 2: Convert to fraction form
    13,009.62/17,953.13 = 7,041.15/x
  3. Step 3: Cross multiply
    13,009.62x = 17,953.13 × 7,041.15
  4. Step 4: Simplify right side
    13,009.62x = 126,410,681.30
  5. Step 5: Solve for x
    x = 126,410,681.30/13,009.62
  6. Step 6: Final answer
    x = 9,716.71

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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.