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Finding the Fourth Proportional to 65,580.84, 90,500.49 and 37,285.92

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Solution

The fourth proportional to 65,580.84, 90,500.49 and 37,285.92 is: 51,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,580.84 : 90,500.49 = 37,285.92 : x
  2. Step 2: Convert to fraction form
    65,580.84/90,500.49 = 37,285.92/x
  3. Step 3: Cross multiply
    65,580.84x = 90,500.49 × 37,285.92
  4. Step 4: Simplify right side
    65,580.84x = 3,374,394,030.10
  5. Step 5: Solve for x
    x = 3,374,394,030.10/65,580.84
  6. Step 6: Final answer
    x = 51,453.96

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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.