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Finding the Fourth Proportional to 4,058.28, 6,087.36 and 980.28

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Solution

The fourth proportional to 4,058.28, 6,087.36 and 980.28 is: 1,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,058.28 : 6,087.36 = 980.28 : x
  2. Step 2: Convert to fraction form
    4,058.28/6,087.36 = 980.28/x
  3. Step 3: Cross multiply
    4,058.28x = 6,087.36 × 980.28
  4. Step 4: Simplify right side
    4,058.28x = 5,967,317.26
  5. Step 5: Solve for x
    x = 5,967,317.26/4,058.28
  6. Step 6: Final answer
    x = 1,470.41

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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.