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Finding the Fourth Proportional to 14,991, 22,487.58 and 5,757

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Solution

The fourth proportional to 14,991, 22,487.58 and 5,757 is: 8,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991 : 22,487.58 = 5,757 : x
  2. Step 2: Convert to fraction form
    14,991/22,487.58 = 5,757/x
  3. Step 3: Cross multiply
    14,991x = 22,487.58 × 5,757
  4. Step 4: Simplify right side
    14,991x = 129,460,998.06
  5. Step 5: Solve for x
    x = 129,460,998.06/14,991
  6. Step 6: Final answer
    x = 8,635.91

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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.