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Finding the Fourth Proportional to 8,570.52, 11,826.54 and 5,426.64

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Solution

The fourth proportional to 8,570.52, 11,826.54 and 5,426.64 is: 7,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.52 : 11,826.54 = 5,426.64 : x
  2. Step 2: Convert to fraction form
    8,570.52/11,826.54 = 5,426.64/x
  3. Step 3: Cross multiply
    8,570.52x = 11,826.54 × 5,426.64
  4. Step 4: Simplify right side
    8,570.52x = 64,178,375.03
  5. Step 5: Solve for x
    x = 64,178,375.03/8,570.52
  6. Step 6: Final answer
    x = 7,488.27

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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.