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Finding the Fourth Proportional to 14,917.15, 20,563.90 and 10,426.92

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Solution

The fourth proportional to 14,917.15, 20,563.90 and 10,426.92 is: 14,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,917.15 : 20,563.90 = 10,426.92 : x
  2. Step 2: Convert to fraction form
    14,917.15/20,563.90 = 10,426.92/x
  3. Step 3: Cross multiply
    14,917.15x = 20,563.90 × 10,426.92
  4. Step 4: Simplify right side
    14,917.15x = 214,418,140.19
  5. Step 5: Solve for x
    x = 214,418,140.19/14,917.15
  6. Step 6: Final answer
    x = 14,373.93

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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.