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Finding the Fourth Proportional to 18,946.76, 28,394.22 and 9,693.32

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Solution

The fourth proportional to 18,946.76, 28,394.22 and 9,693.32 is: 14,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.76 : 28,394.22 = 9,693.32 : x
  2. Step 2: Convert to fraction form
    18,946.76/28,394.22 = 9,693.32/x
  3. Step 3: Cross multiply
    18,946.76x = 28,394.22 × 9,693.32
  4. Step 4: Simplify right side
    18,946.76x = 275,234,260.61
  5. Step 5: Solve for x
    x = 275,234,260.61/18,946.76
  6. Step 6: Final answer
    x = 14,526.72

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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.