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Finding the Fourth Proportional to 7,813.16, 10,796.93 and 5,921.35

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Solution

The fourth proportional to 7,813.16, 10,796.93 and 5,921.35 is: 8,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.16 : 10,796.93 = 5,921.35 : x
  2. Step 2: Convert to fraction form
    7,813.16/10,796.93 = 5,921.35/x
  3. Step 3: Cross multiply
    7,813.16x = 10,796.93 × 5,921.35
  4. Step 4: Simplify right side
    7,813.16x = 63,932,347.47
  5. Step 5: Solve for x
    x = 63,932,347.47/7,813.16
  6. Step 6: Final answer
    x = 8,182.65

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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.