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Finding the Fourth Proportional to 7,611.82, 10,503.50 and 4,254.77

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Solution

The fourth proportional to 7,611.82, 10,503.50 and 4,254.77 is: 5,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.82 : 10,503.50 = 4,254.77 : x
  2. Step 2: Convert to fraction form
    7,611.82/10,503.50 = 4,254.77/x
  3. Step 3: Cross multiply
    7,611.82x = 10,503.50 × 4,254.77
  4. Step 4: Simplify right side
    7,611.82x = 44,689,981.68
  5. Step 5: Solve for x
    x = 44,689,981.68/7,611.82
  6. Step 6: Final answer
    x = 5,871.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.