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Finding the Fourth Proportional to 28,532.93, 42,799.86 and 11,888.91

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Solution

The fourth proportional to 28,532.93, 42,799.86 and 11,888.91 is: 17,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.93 : 42,799.86 = 11,888.91 : x
  2. Step 2: Convert to fraction form
    28,532.93/42,799.86 = 11,888.91/x
  3. Step 3: Cross multiply
    28,532.93x = 42,799.86 × 11,888.91
  4. Step 4: Simplify right side
    28,532.93x = 508,843,683.55
  5. Step 5: Solve for x
    x = 508,843,683.55/28,532.93
  6. Step 6: Final answer
    x = 17,833.56

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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.