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Finding the Fourth Proportional to 70,861.93, 97,789.44 and 39,030.82

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Solution

The fourth proportional to 70,861.93, 97,789.44 and 39,030.82 is: 53,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.93 : 97,789.44 = 39,030.82 : x
  2. Step 2: Convert to fraction form
    70,861.93/97,789.44 = 39,030.82/x
  3. Step 3: Cross multiply
    70,861.93x = 97,789.44 × 39,030.82
  4. Step 4: Simplify right side
    70,861.93x = 3,816,802,455.35
  5. Step 5: Solve for x
    x = 3,816,802,455.35/70,861.93
  6. Step 6: Final answer
    x = 53,862.53

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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.