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Finding the Fourth Proportional to 28,083.68, 38,773.68 and 17,477.60

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Solution

The fourth proportional to 28,083.68, 38,773.68 and 17,477.60 is: 24,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.68 : 38,773.68 = 17,477.60 : x
  2. Step 2: Convert to fraction form
    28,083.68/38,773.68 = 17,477.60/x
  3. Step 3: Cross multiply
    28,083.68x = 38,773.68 × 17,477.60
  4. Step 4: Simplify right side
    28,083.68x = 677,670,869.57
  5. Step 5: Solve for x
    x = 677,670,869.57/28,083.68
  6. Step 6: Final answer
    x = 24,130.42

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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.