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Finding the Fourth Proportional to 18,735.59, 28,095.14 and 9,968.42

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Solution

The fourth proportional to 18,735.59, 28,095.14 and 9,968.42 is: 14,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.59 : 28,095.14 = 9,968.42 : x
  2. Step 2: Convert to fraction form
    18,735.59/28,095.14 = 9,968.42/x
  3. Step 3: Cross multiply
    18,735.59x = 28,095.14 × 9,968.42
  4. Step 4: Simplify right side
    18,735.59x = 280,063,965.16
  5. Step 5: Solve for x
    x = 280,063,965.16/18,735.59
  6. Step 6: Final answer
    x = 14,948.24

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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.