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Finding the Fourth Proportional to 8,588.71, 11,851.74 and 4,811.58

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Solution

The fourth proportional to 8,588.71, 11,851.74 and 4,811.58 is: 6,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.71 : 11,851.74 = 4,811.58 : x
  2. Step 2: Convert to fraction form
    8,588.71/11,851.74 = 4,811.58/x
  3. Step 3: Cross multiply
    8,588.71x = 11,851.74 × 4,811.58
  4. Step 4: Simplify right side
    8,588.71x = 57,025,595.15
  5. Step 5: Solve for x
    x = 57,025,595.15/8,588.71
  6. Step 6: Final answer
    x = 6,639.60

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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.