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Finding the Fourth Proportional to 3,058.96, 4,587.75 and 867.10

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Solution

The fourth proportional to 3,058.96, 4,587.75 and 867.10 is: 1,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.96 : 4,587.75 = 867.10 : x
  2. Step 2: Convert to fraction form
    3,058.96/4,587.75 = 867.10/x
  3. Step 3: Cross multiply
    3,058.96x = 4,587.75 × 867.10
  4. Step 4: Simplify right side
    3,058.96x = 3,978,038.03
  5. Step 5: Solve for x
    x = 3,978,038.03/3,058.96
  6. Step 6: Final answer
    x = 1,300.45

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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.