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Finding the Fourth Proportional to 65,466.64, 90,344.55 and 37,172.92

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Solution

The fourth proportional to 65,466.64, 90,344.55 and 37,172.92 is: 51,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,466.64 : 90,344.55 = 37,172.92 : x
  2. Step 2: Convert to fraction form
    65,466.64/90,344.55 = 37,172.92/x
  3. Step 3: Cross multiply
    65,466.64x = 90,344.55 × 37,172.92
  4. Step 4: Simplify right side
    65,466.64x = 3,358,370,729.59
  5. Step 5: Solve for x
    x = 3,358,370,729.59/65,466.64
  6. Step 6: Final answer
    x = 51,298.96

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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.