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Finding the Fourth Proportional to 61,933.48, 85,468.34 and 33,638.56

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Solution

The fourth proportional to 61,933.48, 85,468.34 and 33,638.56 is: 46,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,933.48 : 85,468.34 = 33,638.56 : x
  2. Step 2: Convert to fraction form
    61,933.48/85,468.34 = 33,638.56/x
  3. Step 3: Cross multiply
    61,933.48x = 85,468.34 × 33,638.56
  4. Step 4: Simplify right side
    61,933.48x = 2,875,031,883.19
  5. Step 5: Solve for x
    x = 2,875,031,883.19/61,933.48
  6. Step 6: Final answer
    x = 46,421.29

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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.