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Finding the Fourth Proportional to 65,463.50, 90,339.81 and 37,173.62

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Solution

The fourth proportional to 65,463.50, 90,339.81 and 37,173.62 is: 51,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,463.50 : 90,339.81 = 37,173.62 : x
  2. Step 2: Convert to fraction form
    65,463.50/90,339.81 = 37,173.62/x
  3. Step 3: Cross multiply
    65,463.50x = 90,339.81 × 37,173.62
  4. Step 4: Simplify right side
    65,463.50x = 3,358,257,767.81
  5. Step 5: Solve for x
    x = 3,358,257,767.81/65,463.50
  6. Step 6: Final answer
    x = 51,299.70

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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.