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Finding the Fourth Proportional to 13,750.70, 18,975.97 and 7,463.07

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Solution

The fourth proportional to 13,750.70, 18,975.97 and 7,463.07 is: 10,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.70 : 18,975.97 = 7,463.07 : x
  2. Step 2: Convert to fraction form
    13,750.70/18,975.97 = 7,463.07/x
  3. Step 3: Cross multiply
    13,750.70x = 18,975.97 × 7,463.07
  4. Step 4: Simplify right side
    13,750.70x = 141,618,973.77
  5. Step 5: Solve for x
    x = 141,618,973.77/13,750.70
  6. Step 6: Final answer
    x = 10,299.04

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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.