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Finding the Fourth Proportional to 17,602.56, 26,407.08 and 7,221.60

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Solution

The fourth proportional to 17,602.56, 26,407.08 and 7,221.60 is: 10,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,602.56 : 26,407.08 = 7,221.60 : x
  2. Step 2: Convert to fraction form
    17,602.56/26,407.08 = 7,221.60/x
  3. Step 3: Cross multiply
    17,602.56x = 26,407.08 × 7,221.60
  4. Step 4: Simplify right side
    17,602.56x = 190,701,368.93
  5. Step 5: Solve for x
    x = 190,701,368.93/17,602.56
  6. Step 6: Final answer
    x = 10,833.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.