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Finding the Fourth Proportional to 61,647.84, 85,078.51 and 34,792.69

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Solution

The fourth proportional to 61,647.84, 85,078.51 and 34,792.69 is: 48,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,647.84 : 85,078.51 = 34,792.69 : x
  2. Step 2: Convert to fraction form
    61,647.84/85,078.51 = 34,792.69/x
  3. Step 3: Cross multiply
    61,647.84x = 85,078.51 × 34,792.69
  4. Step 4: Simplify right side
    61,647.84x = 2,960,110,224.09
  5. Step 5: Solve for x
    x = 2,960,110,224.09/61,647.84
  6. Step 6: Final answer
    x = 48,016.45

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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.