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Finding the Fourth Proportional to 53,777.80, 74,215.06 and 29,905.48

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Solution

The fourth proportional to 53,777.80, 74,215.06 and 29,905.48 is: 41,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,777.80 : 74,215.06 = 29,905.48 : x
  2. Step 2: Convert to fraction form
    53,777.80/74,215.06 = 29,905.48/x
  3. Step 3: Cross multiply
    53,777.80x = 74,215.06 × 29,905.48
  4. Step 4: Simplify right side
    53,777.80x = 2,219,436,992.53
  5. Step 5: Solve for x
    x = 2,219,436,992.53/53,777.80
  6. Step 6: Final answer
    x = 41,270.51

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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.