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Finding the Fourth Proportional to 14,911.96, 20,569.94 and 9,313.24

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Solution

The fourth proportional to 14,911.96, 20,569.94 and 9,313.24 is: 12,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.96 : 20,569.94 = 9,313.24 : x
  2. Step 2: Convert to fraction form
    14,911.96/20,569.94 = 9,313.24/x
  3. Step 3: Cross multiply
    14,911.96x = 20,569.94 × 9,313.24
  4. Step 4: Simplify right side
    14,911.96x = 191,572,788.01
  5. Step 5: Solve for x
    x = 191,572,788.01/14,911.96
  6. Step 6: Final answer
    x = 12,846.92

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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.