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Finding the Fourth Proportional to 10,405.61, 14,356.22 and 5,926.19

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Solution

The fourth proportional to 10,405.61, 14,356.22 and 5,926.19 is: 8,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.61 : 14,356.22 = 5,926.19 : x
  2. Step 2: Convert to fraction form
    10,405.61/14,356.22 = 5,926.19/x
  3. Step 3: Cross multiply
    10,405.61x = 14,356.22 × 5,926.19
  4. Step 4: Simplify right side
    10,405.61x = 85,077,630.44
  5. Step 5: Solve for x
    x = 85,077,630.44/10,405.61
  6. Step 6: Final answer
    x = 8,176.13

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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.