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Finding the Fourth Proportional to 30,596.15, 45,910.95 and 11,876.93

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Solution

The fourth proportional to 30,596.15, 45,910.95 and 11,876.93 is: 17,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,596.15 : 45,910.95 = 11,876.93 : x
  2. Step 2: Convert to fraction form
    30,596.15/45,910.95 = 11,876.93/x
  3. Step 3: Cross multiply
    30,596.15x = 45,910.95 × 11,876.93
  4. Step 4: Simplify right side
    30,596.15x = 545,281,139.38
  5. Step 5: Solve for x
    x = 545,281,139.38/30,596.15
  6. Step 6: Final answer
    x = 17,821.89

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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.