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Finding the Fourth Proportional to 65,813.76, 90,822.88 and 37,133.38

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Solution

The fourth proportional to 65,813.76, 90,822.88 and 37,133.38 is: 51,244.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,813.76 : 90,822.88 = 37,133.38 : x
  2. Step 2: Convert to fraction form
    65,813.76/90,822.88 = 37,133.38/x
  3. Step 3: Cross multiply
    65,813.76x = 90,822.88 × 37,133.38
  4. Step 4: Simplify right side
    65,813.76x = 3,372,560,515.73
  5. Step 5: Solve for x
    x = 3,372,560,515.73/65,813.76
  6. Step 6: Final answer
    x = 51,244.00

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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.