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Finding the Fourth Proportional to 65,335.72, 90,164.22 and 48,953.92

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Solution

The fourth proportional to 65,335.72, 90,164.22 and 48,953.92 is: 67,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,335.72 : 90,164.22 = 48,953.92 : x
  2. Step 2: Convert to fraction form
    65,335.72/90,164.22 = 48,953.92/x
  3. Step 3: Cross multiply
    65,335.72x = 90,164.22 × 48,953.92
  4. Step 4: Simplify right side
    65,335.72x = 4,413,892,012.74
  5. Step 5: Solve for x
    x = 4,413,892,012.74/65,335.72
  6. Step 6: Final answer
    x = 67,557.10

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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.