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Finding the Fourth Proportional to 69,653.61, 96,121.35 and 37,820.61

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Solution

The fourth proportional to 69,653.61, 96,121.35 and 37,820.61 is: 52,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,653.61 : 96,121.35 = 37,820.61 : x
  2. Step 2: Convert to fraction form
    69,653.61/96,121.35 = 37,820.61/x
  3. Step 3: Cross multiply
    69,653.61x = 96,121.35 × 37,820.61
  4. Step 4: Simplify right side
    69,653.61x = 3,635,368,091.02
  5. Step 5: Solve for x
    x = 3,635,368,091.02/69,653.61
  6. Step 6: Final answer
    x = 52,192.10

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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.