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Finding the Fourth Proportional to 9,612.99, 13,265.37 and 5,364.45

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Solution

The fourth proportional to 9,612.99, 13,265.37 and 5,364.45 is: 7,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.99 : 13,265.37 = 5,364.45 : x
  2. Step 2: Convert to fraction form
    9,612.99/13,265.37 = 5,364.45/x
  3. Step 3: Cross multiply
    9,612.99x = 13,265.37 × 5,364.45
  4. Step 4: Simplify right side
    9,612.99x = 71,161,414.10
  5. Step 5: Solve for x
    x = 71,161,414.10/9,612.99
  6. Step 6: Final answer
    x = 7,402.63

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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.