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Finding the Fourth Proportional to 8,551.47, 11,801.23 and 5,364.90

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Solution

The fourth proportional to 8,551.47, 11,801.23 and 5,364.90 is: 7,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.47 : 11,801.23 = 5,364.90 : x
  2. Step 2: Convert to fraction form
    8,551.47/11,801.23 = 5,364.90/x
  3. Step 3: Cross multiply
    8,551.47x = 11,801.23 × 5,364.90
  4. Step 4: Simplify right side
    8,551.47x = 63,312,418.83
  5. Step 5: Solve for x
    x = 63,312,418.83/8,551.47
  6. Step 6: Final answer
    x = 7,403.69

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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.