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Finding the Fourth Proportional to 8,588.70, 11,852.40 and 4,811.89

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Solution

The fourth proportional to 8,588.70, 11,852.40 and 4,811.89 is: 6,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.70 : 11,852.40 = 4,811.89 : x
  2. Step 2: Convert to fraction form
    8,588.70/11,852.40 = 4,811.89/x
  3. Step 3: Cross multiply
    8,588.70x = 11,852.40 × 4,811.89
  4. Step 4: Simplify right side
    8,588.70x = 57,032,448.41
  5. Step 5: Solve for x
    x = 57,032,448.41/8,588.70
  6. Step 6: Final answer
    x = 6,640.40

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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.