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Finding the Fourth Proportional to 58,266, 80,407.08 and 33,120.36

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Solution

The fourth proportional to 58,266, 80,407.08 and 33,120.36 is: 45,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266 : 80,407.08 = 33,120.36 : x
  2. Step 2: Convert to fraction form
    58,266/80,407.08 = 33,120.36/x
  3. Step 3: Cross multiply
    58,266x = 80,407.08 × 33,120.36
  4. Step 4: Simplify right side
    58,266x = 2,663,111,436.15
  5. Step 5: Solve for x
    x = 2,663,111,436.15/58,266
  6. Step 6: Final answer
    x = 45,706.10

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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.