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Finding the Fourth Proportional to 10,409.90, 14,366.02 and 5,934.32

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Solution

The fourth proportional to 10,409.90, 14,366.02 and 5,934.32 is: 8,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.90 : 14,366.02 = 5,934.32 : x
  2. Step 2: Convert to fraction form
    10,409.90/14,366.02 = 5,934.32/x
  3. Step 3: Cross multiply
    10,409.90x = 14,366.02 × 5,934.32
  4. Step 4: Simplify right side
    10,409.90x = 85,252,559.81
  5. Step 5: Solve for x
    x = 85,252,559.81/10,409.90
  6. Step 6: Final answer
    x = 8,189.57

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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.