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Finding the Fourth Proportional to 61,003.94, 84,160.62 and 38,335.68

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Solution

The fourth proportional to 61,003.94, 84,160.62 and 38,335.68 is: 52,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,003.94 : 84,160.62 = 38,335.68 : x
  2. Step 2: Convert to fraction form
    61,003.94/84,160.62 = 38,335.68/x
  3. Step 3: Cross multiply
    61,003.94x = 84,160.62 × 38,335.68
  4. Step 4: Simplify right side
    61,003.94x = 3,226,354,596.92
  5. Step 5: Solve for x
    x = 3,226,354,596.92/61,003.94
  6. Step 6: Final answer
    x = 52,887.65

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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.