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Finding the Fourth Proportional to 28,483.73, 42,734.73 and 13,693.73

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Solution

The fourth proportional to 28,483.73, 42,734.73 and 13,693.73 is: 20,544.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.73 : 42,734.73 = 13,693.73 : x
  2. Step 2: Convert to fraction form
    28,483.73/42,734.73 = 13,693.73/x
  3. Step 3: Cross multiply
    28,483.73x = 42,734.73 × 13,693.73
  4. Step 4: Simplify right side
    28,483.73x = 585,197,854.24
  5. Step 5: Solve for x
    x = 585,197,854.24/28,483.73
  6. Step 6: Final answer
    x = 20,544.99

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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.