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Finding the Fourth Proportional to 53,391.78, 73,679.56 and 29,517.93

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Solution

The fourth proportional to 53,391.78, 73,679.56 and 29,517.93 is: 40,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,391.78 : 73,679.56 = 29,517.93 : x
  2. Step 2: Convert to fraction form
    53,391.78/73,679.56 = 29,517.93/x
  3. Step 3: Cross multiply
    53,391.78x = 73,679.56 × 29,517.93
  4. Step 4: Simplify right side
    53,391.78x = 2,174,868,094.51
  5. Step 5: Solve for x
    x = 2,174,868,094.51/53,391.78
  6. Step 6: Final answer
    x = 40,734.14

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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.