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Finding the Fourth Proportional to 13,262.81, 18,301.99 and 7,293.32

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Solution

The fourth proportional to 13,262.81, 18,301.99 and 7,293.32 is: 10,064.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.81 : 18,301.99 = 7,293.32 : x
  2. Step 2: Convert to fraction form
    13,262.81/18,301.99 = 7,293.32/x
  3. Step 3: Cross multiply
    13,262.81x = 18,301.99 × 7,293.32
  4. Step 4: Simplify right side
    13,262.81x = 133,482,365.73
  5. Step 5: Solve for x
    x = 133,482,365.73/13,262.81
  6. Step 6: Final answer
    x = 10,064.41

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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.