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Finding the Fourth Proportional to 14,315.81, 19,735.05 and 10,053.89

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Solution

The fourth proportional to 14,315.81, 19,735.05 and 10,053.89 is: 13,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.81 : 19,735.05 = 10,053.89 : x
  2. Step 2: Convert to fraction form
    14,315.81/19,735.05 = 10,053.89/x
  3. Step 3: Cross multiply
    14,315.81x = 19,735.05 × 10,053.89
  4. Step 4: Simplify right side
    14,315.81x = 198,414,021.84
  5. Step 5: Solve for x
    x = 198,414,021.84/14,315.81
  6. Step 6: Final answer
    x = 13,859.78

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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.