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Finding the Fourth Proportional to 19,091.16, 28,613.28 and 9,101.16

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Solution

The fourth proportional to 19,091.16, 28,613.28 and 9,101.16 is: 13,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.16 : 28,613.28 = 9,101.16 : x
  2. Step 2: Convert to fraction form
    19,091.16/28,613.28 = 9,101.16/x
  3. Step 3: Cross multiply
    19,091.16x = 28,613.28 × 9,101.16
  4. Step 4: Simplify right side
    19,091.16x = 260,414,039.40
  5. Step 5: Solve for x
    x = 260,414,039.40/19,091.16
  6. Step 6: Final answer
    x = 13,640.56

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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.