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Finding the Fourth Proportional to 13,009.55, 17,953.14 and 7,041.16

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Solution

The fourth proportional to 13,009.55, 17,953.14 and 7,041.16 is: 9,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.55 : 17,953.14 = 7,041.16 : x
  2. Step 2: Convert to fraction form
    13,009.55/17,953.14 = 7,041.16/x
  3. Step 3: Cross multiply
    13,009.55x = 17,953.14 × 7,041.16
  4. Step 4: Simplify right side
    13,009.55x = 126,410,980.09
  5. Step 5: Solve for x
    x = 126,410,980.09/13,009.55
  6. Step 6: Final answer
    x = 9,716.79

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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.