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Finding the Fourth Proportional to 10,400.42, 14,352.42 and 5,684.66

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Solution

The fourth proportional to 10,400.42, 14,352.42 and 5,684.66 is: 7,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.42 : 14,352.42 = 5,684.66 : x
  2. Step 2: Convert to fraction form
    10,400.42/14,352.42 = 5,684.66/x
  3. Step 3: Cross multiply
    10,400.42x = 14,352.42 × 5,684.66
  4. Step 4: Simplify right side
    10,400.42x = 81,588,627.88
  5. Step 5: Solve for x
    x = 81,588,627.88/10,400.42
  6. Step 6: Final answer
    x = 7,844.74

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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.