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Finding the Fourth Proportional to 18,802.42, 25,933.54 and 13,502.68

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Solution

The fourth proportional to 18,802.42, 25,933.54 and 13,502.68 is: 18,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.42 : 25,933.54 = 13,502.68 : x
  2. Step 2: Convert to fraction form
    18,802.42/25,933.54 = 13,502.68/x
  3. Step 3: Cross multiply
    18,802.42x = 25,933.54 × 13,502.68
  4. Step 4: Simplify right side
    18,802.42x = 350,172,291.89
  5. Step 5: Solve for x
    x = 350,172,291.89/18,802.42
  6. Step 6: Final answer
    x = 18,623.79

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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.