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Finding the Fourth Proportional to 11,841.76, 17,756.46 and 3,520.63

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Solution

The fourth proportional to 11,841.76, 17,756.46 and 3,520.63 is: 5,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.76 : 17,756.46 = 3,520.63 : x
  2. Step 2: Convert to fraction form
    11,841.76/17,756.46 = 3,520.63/x
  3. Step 3: Cross multiply
    11,841.76x = 17,756.46 × 3,520.63
  4. Step 4: Simplify right side
    11,841.76x = 62,513,925.77
  5. Step 5: Solve for x
    x = 62,513,925.77/11,841.76
  6. Step 6: Final answer
    x = 5,279.11

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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.