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Finding the Fourth Proportional to 11,358.78, 15,674.92 and 6,323.01

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Solution

The fourth proportional to 11,358.78, 15,674.92 and 6,323.01 is: 8,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.78 : 15,674.92 = 6,323.01 : x
  2. Step 2: Convert to fraction form
    11,358.78/15,674.92 = 6,323.01/x
  3. Step 3: Cross multiply
    11,358.78x = 15,674.92 × 6,323.01
  4. Step 4: Simplify right side
    11,358.78x = 99,112,689.49
  5. Step 5: Solve for x
    x = 99,112,689.49/11,358.78
  6. Step 6: Final answer
    x = 8,725.64

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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.