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Finding the Fourth Proportional to 15,953.93, 23,933.07 and 5,421.11

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Solution

The fourth proportional to 15,953.93, 23,933.07 and 5,421.11 is: 8,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,953.93 : 23,933.07 = 5,421.11 : x
  2. Step 2: Convert to fraction form
    15,953.93/23,933.07 = 5,421.11/x
  3. Step 3: Cross multiply
    15,953.93x = 23,933.07 × 5,421.11
  4. Step 4: Simplify right side
    15,953.93x = 129,743,864.94
  5. Step 5: Solve for x
    x = 129,743,864.94/15,953.93
  6. Step 6: Final answer
    x = 8,132.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.