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Finding the Fourth Proportional to 17,570.64, 26,350.80 and 7,040.64

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Solution

The fourth proportional to 17,570.64, 26,350.80 and 7,040.64 is: 10,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,570.64 : 26,350.80 = 7,040.64 : x
  2. Step 2: Convert to fraction form
    17,570.64/26,350.80 = 7,040.64/x
  3. Step 3: Cross multiply
    17,570.64x = 26,350.80 × 7,040.64
  4. Step 4: Simplify right side
    17,570.64x = 185,526,496.51
  5. Step 5: Solve for x
    x = 185,526,496.51/17,570.64
  6. Step 6: Final answer
    x = 10,558.89

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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.