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Finding the Fourth Proportional to 70,048.97, 96,670.28 and 39,837.05

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Solution

The fourth proportional to 70,048.97, 96,670.28 and 39,837.05 is: 54,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,048.97 : 96,670.28 = 39,837.05 : x
  2. Step 2: Convert to fraction form
    70,048.97/96,670.28 = 39,837.05/x
  3. Step 3: Cross multiply
    70,048.97x = 96,670.28 × 39,837.05
  4. Step 4: Simplify right side
    70,048.97x = 3,851,058,394.12
  5. Step 5: Solve for x
    x = 3,851,058,394.12/70,048.97
  6. Step 6: Final answer
    x = 54,976.66

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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.