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Finding the Fourth Proportional to 85,796.82, 118,407.42 and 51,822.18

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Solution

The fourth proportional to 85,796.82, 118,407.42 and 51,822.18 is: 71,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,796.82 : 118,407.42 = 51,822.18 : x
  2. Step 2: Convert to fraction form
    85,796.82/118,407.42 = 51,822.18/x
  3. Step 3: Cross multiply
    85,796.82x = 118,407.42 × 51,822.18
  4. Step 4: Simplify right side
    85,796.82x = 6,136,130,632.58
  5. Step 5: Solve for x
    x = 6,136,130,632.58/85,796.82
  6. Step 6: Final answer
    x = 71,519.32

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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.