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Finding the Fourth Proportional to 29,058.38, 40,068.47 and 20,090.30

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Solution

The fourth proportional to 29,058.38, 40,068.47 and 20,090.30 is: 27,702.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,058.38 : 40,068.47 = 20,090.30 : x
  2. Step 2: Convert to fraction form
    29,058.38/40,068.47 = 20,090.30/x
  3. Step 3: Cross multiply
    29,058.38x = 40,068.47 × 20,090.30
  4. Step 4: Simplify right side
    29,058.38x = 804,987,432.72
  5. Step 5: Solve for x
    x = 804,987,432.72/29,058.38
  6. Step 6: Final answer
    x = 27,702.42

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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.