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Finding the Fourth Proportional to 30,769.91, 46,154.91 and 17,613.18

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Solution

The fourth proportional to 30,769.91, 46,154.91 and 17,613.18 is: 26,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,769.91 : 46,154.91 = 17,613.18 : x
  2. Step 2: Convert to fraction form
    30,769.91/46,154.91 = 17,613.18/x
  3. Step 3: Cross multiply
    30,769.91x = 46,154.91 × 17,613.18
  4. Step 4: Simplify right side
    30,769.91x = 812,934,803.76
  5. Step 5: Solve for x
    x = 812,934,803.76/30,769.91
  6. Step 6: Final answer
    x = 26,419.80

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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.