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Finding the Fourth Proportional to 16,812.12, 23,200.50 and 9,360.12

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Solution

The fourth proportional to 16,812.12, 23,200.50 and 9,360.12 is: 12,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.12 : 23,200.50 = 9,360.12 : x
  2. Step 2: Convert to fraction form
    16,812.12/23,200.50 = 9,360.12/x
  3. Step 3: Cross multiply
    16,812.12x = 23,200.50 × 9,360.12
  4. Step 4: Simplify right side
    16,812.12x = 217,159,464.06
  5. Step 5: Solve for x
    x = 217,159,464.06/16,812.12
  6. Step 6: Final answer
    x = 12,916.84

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1.5x scale

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.