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Finding the Fourth Proportional to 69,747.79, 96,245.79 and 38,703.81

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Solution

The fourth proportional to 69,747.79, 96,245.79 and 38,703.81 is: 53,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,747.79 : 96,245.79 = 38,703.81 : x
  2. Step 2: Convert to fraction form
    69,747.79/96,245.79 = 38,703.81/x
  3. Step 3: Cross multiply
    69,747.79x = 96,245.79 × 38,703.81
  4. Step 4: Simplify right side
    69,747.79x = 3,725,079,095.06
  5. Step 5: Solve for x
    x = 3,725,079,095.06/69,747.79
  6. Step 6: Final answer
    x = 53,407.84

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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.