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Finding the Fourth Proportional to 8,062.25, 11,127.12 and 4,920.26

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Solution

The fourth proportional to 8,062.25, 11,127.12 and 4,920.26 is: 6,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.25 : 11,127.12 = 4,920.26 : x
  2. Step 2: Convert to fraction form
    8,062.25/11,127.12 = 4,920.26/x
  3. Step 3: Cross multiply
    8,062.25x = 11,127.12 × 4,920.26
  4. Step 4: Simplify right side
    8,062.25x = 54,748,323.45
  5. Step 5: Solve for x
    x = 54,748,323.45/8,062.25
  6. Step 6: Final answer
    x = 6,790.70

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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.