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Finding the Fourth Proportional to 8,570.88, 11,825.28 and 5,258.88

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Solution

The fourth proportional to 8,570.88, 11,825.28 and 5,258.88 is: 7,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.88 : 11,825.28 = 5,258.88 : x
  2. Step 2: Convert to fraction form
    8,570.88/11,825.28 = 5,258.88/x
  3. Step 3: Cross multiply
    8,570.88x = 11,825.28 × 5,258.88
  4. Step 4: Simplify right side
    8,570.88x = 62,187,728.49
  5. Step 5: Solve for x
    x = 62,187,728.49/8,570.88
  6. Step 6: Final answer
    x = 7,255.70

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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.