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Finding the Fourth Proportional to 64,953.83, 89,630.35 and 38,091.40

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Solution

The fourth proportional to 64,953.83, 89,630.35 and 38,091.40 is: 52,562.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,953.83 : 89,630.35 = 38,091.40 : x
  2. Step 2: Convert to fraction form
    64,953.83/89,630.35 = 38,091.40/x
  3. Step 3: Cross multiply
    64,953.83x = 89,630.35 × 38,091.40
  4. Step 4: Simplify right side
    64,953.83x = 3,414,145,194.69
  5. Step 5: Solve for x
    x = 3,414,145,194.69/64,953.83
  6. Step 6: Final answer
    x = 52,562.64

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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.