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Finding the Fourth Proportional to 8,612.58, 11,883.33 and 4,886.58

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Solution

The fourth proportional to 8,612.58, 11,883.33 and 4,886.58 is: 6,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.58 : 11,883.33 = 4,886.58 : x
  2. Step 2: Convert to fraction form
    8,612.58/11,883.33 = 4,886.58/x
  3. Step 3: Cross multiply
    8,612.58x = 11,883.33 × 4,886.58
  4. Step 4: Simplify right side
    8,612.58x = 58,068,842.71
  5. Step 5: Solve for x
    x = 58,068,842.71/8,612.58
  6. Step 6: Final answer
    x = 6,742.33

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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.