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Finding the Fourth Proportional to 70,102.99, 96,750.62 and 39,895.66

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Solution

The fourth proportional to 70,102.99, 96,750.62 and 39,895.66 is: 55,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,102.99 : 96,750.62 = 39,895.66 : x
  2. Step 2: Convert to fraction form
    70,102.99/96,750.62 = 39,895.66/x
  3. Step 3: Cross multiply
    70,102.99x = 96,750.62 × 39,895.66
  4. Step 4: Simplify right side
    70,102.99x = 3,859,929,640.83
  5. Step 5: Solve for x
    x = 3,859,929,640.83/70,102.99
  6. Step 6: Final answer
    x = 55,060.84

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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.