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Finding the Fourth Proportional to 14,152.15, 21,204.99 and 8,607.10

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Solution

The fourth proportional to 14,152.15, 21,204.99 and 8,607.10 is: 12,896.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.15 : 21,204.99 = 8,607.10 : x
  2. Step 2: Convert to fraction form
    14,152.15/21,204.99 = 8,607.10/x
  3. Step 3: Cross multiply
    14,152.15x = 21,204.99 × 8,607.10
  4. Step 4: Simplify right side
    14,152.15x = 182,513,469.43
  5. Step 5: Solve for x
    x = 182,513,469.43/14,152.15
  6. Step 6: Final answer
    x = 12,896.52

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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.