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Finding the Fourth Proportional to 61,484.67, 84,809.84 and 38,784.02

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Solution

The fourth proportional to 61,484.67, 84,809.84 and 38,784.02 is: 53,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,484.67 : 84,809.84 = 38,784.02 : x
  2. Step 2: Convert to fraction form
    61,484.67/84,809.84 = 38,784.02/x
  3. Step 3: Cross multiply
    61,484.67x = 84,809.84 × 38,784.02
  4. Step 4: Simplify right side
    61,484.67x = 3,289,265,912.79
  5. Step 5: Solve for x
    x = 3,289,265,912.79/61,484.67
  6. Step 6: Final answer
    x = 53,497.33

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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.