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Finding the Fourth Proportional to 64,863.70, 97,295.55 and 37,138.90

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Solution

The fourth proportional to 64,863.70, 97,295.55 and 37,138.90 is: 55,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,863.70 : 97,295.55 = 37,138.90 : x
  2. Step 2: Convert to fraction form
    64,863.70/97,295.55 = 37,138.90/x
  3. Step 3: Cross multiply
    64,863.70x = 97,295.55 × 37,138.90
  4. Step 4: Simplify right side
    64,863.70x = 3,613,449,701.90
  5. Step 5: Solve for x
    x = 3,613,449,701.90/64,863.70
  6. Step 6: Final answer
    x = 55,708.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.