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Finding the Fourth Proportional to 8,355.77, 11,530.95 and 4,579.17

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Solution

The fourth proportional to 8,355.77, 11,530.95 and 4,579.17 is: 6,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.77 : 11,530.95 = 4,579.17 : x
  2. Step 2: Convert to fraction form
    8,355.77/11,530.95 = 4,579.17/x
  3. Step 3: Cross multiply
    8,355.77x = 11,530.95 × 4,579.17
  4. Step 4: Simplify right side
    8,355.77x = 52,802,180.31
  5. Step 5: Solve for x
    x = 52,802,180.31/8,355.77
  6. Step 6: Final answer
    x = 6,319.25

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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.