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Finding the Fourth Proportional to 8,579.10, 12,859.05 and 4,883.10

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Solution

The fourth proportional to 8,579.10, 12,859.05 and 4,883.10 is: 7,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.10 : 12,859.05 = 4,883.10 : x
  2. Step 2: Convert to fraction form
    8,579.10/12,859.05 = 4,883.10/x
  3. Step 3: Cross multiply
    8,579.10x = 12,859.05 × 4,883.10
  4. Step 4: Simplify right side
    8,579.10x = 62,792,027.06
  5. Step 5: Solve for x
    x = 62,792,027.06/8,579.10
  6. Step 6: Final answer
    x = 7,319.19

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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.