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Finding the Fourth Proportional to 70,696.58, 97,558.79 and 38,865.24

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Solution

The fourth proportional to 70,696.58, 97,558.79 and 38,865.24 is: 53,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.58 : 97,558.79 = 38,865.24 : x
  2. Step 2: Convert to fraction form
    70,696.58/97,558.79 = 38,865.24/x
  3. Step 3: Cross multiply
    70,696.58x = 97,558.79 × 38,865.24
  4. Step 4: Simplify right side
    70,696.58x = 3,791,645,593.13
  5. Step 5: Solve for x
    x = 3,791,645,593.13/70,696.58
  6. Step 6: Final answer
    x = 53,632.66

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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.