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Finding the Fourth Proportional to 23,886.99, 32,888.74 and 21,672.65

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Solution

The fourth proportional to 23,886.99, 32,888.74 and 21,672.65 is: 29,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,886.99 : 32,888.74 = 21,672.65 : x
  2. Step 2: Convert to fraction form
    23,886.99/32,888.74 = 21,672.65/x
  3. Step 3: Cross multiply
    23,886.99x = 32,888.74 × 21,672.65
  4. Step 4: Simplify right side
    23,886.99x = 712,786,150.96
  5. Step 5: Solve for x
    x = 712,786,150.96/23,886.99
  6. Step 6: Final answer
    x = 29,839.93

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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.