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Finding the Fourth Proportional to 14,875.52, 22,311.34 and 8,638.88

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Solution

The fourth proportional to 14,875.52, 22,311.34 and 8,638.88 is: 12,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,875.52 : 22,311.34 = 8,638.88 : x
  2. Step 2: Convert to fraction form
    14,875.52/22,311.34 = 8,638.88/x
  3. Step 3: Cross multiply
    14,875.52x = 22,311.34 × 8,638.88
  4. Step 4: Simplify right side
    14,875.52x = 192,744,855.75
  5. Step 5: Solve for x
    x = 192,744,855.75/14,875.52
  6. Step 6: Final answer
    x = 12,957.19

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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.