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Finding the Fourth Proportional to 14,783.33, 20,395.17 and 9,749.99

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Solution

The fourth proportional to 14,783.33, 20,395.17 and 9,749.99 is: 13,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.33 : 20,395.17 = 9,749.99 : x
  2. Step 2: Convert to fraction form
    14,783.33/20,395.17 = 9,749.99/x
  3. Step 3: Cross multiply
    14,783.33x = 20,395.17 × 9,749.99
  4. Step 4: Simplify right side
    14,783.33x = 198,852,601.57
  5. Step 5: Solve for x
    x = 198,852,601.57/14,783.33
  6. Step 6: Final answer
    x = 13,451.14

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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.