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Finding the Fourth Proportional to 10,433.55, 15,611.08 and 7,319.63

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Solution

The fourth proportional to 10,433.55, 15,611.08 and 7,319.63 is: 10,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.55 : 15,611.08 = 7,319.63 : x
  2. Step 2: Convert to fraction form
    10,433.55/15,611.08 = 7,319.63/x
  3. Step 3: Cross multiply
    10,433.55x = 15,611.08 × 7,319.63
  4. Step 4: Simplify right side
    10,433.55x = 114,267,329.50
  5. Step 5: Solve for x
    x = 114,267,329.50/10,433.55
  6. Step 6: Final answer
    x = 10,951.91

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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.