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Finding the Fourth Proportional to 10,613.88, 15,907.02 and 4,366.80

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Solution

The fourth proportional to 10,613.88, 15,907.02 and 4,366.80 is: 6,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.88 : 15,907.02 = 4,366.80 : x
  2. Step 2: Convert to fraction form
    10,613.88/15,907.02 = 4,366.80/x
  3. Step 3: Cross multiply
    10,613.88x = 15,907.02 × 4,366.80
  4. Step 4: Simplify right side
    10,613.88x = 69,462,774.94
  5. Step 5: Solve for x
    x = 69,462,774.94/10,613.88
  6. Step 6: Final answer
    x = 6,544.52

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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.