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Finding the Fourth Proportional to 61,221.84, 84,408.52 and 46,898.64

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Solution

The fourth proportional to 61,221.84, 84,408.52 and 46,898.64 is: 64,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.84 : 84,408.52 = 46,898.64 : x
  2. Step 2: Convert to fraction form
    61,221.84/84,408.52 = 46,898.64/x
  3. Step 3: Cross multiply
    61,221.84x = 84,408.52 × 46,898.64
  4. Step 4: Simplify right side
    61,221.84x = 3,958,644,792.41
  5. Step 5: Solve for x
    x = 3,958,644,792.41/61,221.84
  6. Step 6: Final answer
    x = 64,660.66

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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.