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Finding the Fourth Proportional to 13,041.61, 17,931.02 and 11,611.96

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Solution

The fourth proportional to 13,041.61, 17,931.02 and 11,611.96 is: 15,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.61 : 17,931.02 = 11,611.96 : x
  2. Step 2: Convert to fraction form
    13,041.61/17,931.02 = 11,611.96/x
  3. Step 3: Cross multiply
    13,041.61x = 17,931.02 × 11,611.96
  4. Step 4: Simplify right side
    13,041.61x = 208,214,287.00
  5. Step 5: Solve for x
    x = 208,214,287.00/13,041.61
  6. Step 6: Final answer
    x = 15,965.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.