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Finding the Fourth Proportional to 14,991.90, 22,487.85 and 8,417.94

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Solution

The fourth proportional to 14,991.90, 22,487.85 and 8,417.94 is: 12,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.90 : 22,487.85 = 8,417.94 : x
  2. Step 2: Convert to fraction form
    14,991.90/22,487.85 = 8,417.94/x
  3. Step 3: Cross multiply
    14,991.90x = 22,487.85 × 8,417.94
  4. Step 4: Simplify right side
    14,991.90x = 189,301,372.03
  5. Step 5: Solve for x
    x = 189,301,372.03/14,991.90
  6. Step 6: Final answer
    x = 12,626.91

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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.