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Finding the Fourth Proportional to 65,784.44, 90,780.36 and 37,104.84

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Solution

The fourth proportional to 65,784.44, 90,780.36 and 37,104.84 is: 51,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,784.44 : 90,780.36 = 37,104.84 : x
  2. Step 2: Convert to fraction form
    65,784.44/90,780.36 = 37,104.84/x
  3. Step 3: Cross multiply
    65,784.44x = 90,780.36 × 37,104.84
  4. Step 4: Simplify right side
    65,784.44x = 3,368,390,732.94
  5. Step 5: Solve for x
    x = 3,368,390,732.94/65,784.44
  6. Step 6: Final answer
    x = 51,203.46

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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.