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Finding the Fourth Proportional to 8,954.50, 13,431.72 and 5,058.88

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Solution

The fourth proportional to 8,954.50, 13,431.72 and 5,058.88 is: 7,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.50 : 13,431.72 = 5,058.88 : x
  2. Step 2: Convert to fraction form
    8,954.50/13,431.72 = 5,058.88/x
  3. Step 3: Cross multiply
    8,954.50x = 13,431.72 × 5,058.88
  4. Step 4: Simplify right side
    8,954.50x = 67,949,459.67
  5. Step 5: Solve for x
    x = 67,949,459.67/8,954.50
  6. Step 6: Final answer
    x = 7,588.30

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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.