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Finding the Fourth Proportional to 70,336.94, 97,064.81 and 38,505.56

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Solution

The fourth proportional to 70,336.94, 97,064.81 and 38,505.56 is: 53,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,336.94 : 97,064.81 = 38,505.56 : x
  2. Step 2: Convert to fraction form
    70,336.94/97,064.81 = 38,505.56/x
  3. Step 3: Cross multiply
    70,336.94x = 97,064.81 × 38,505.56
  4. Step 4: Simplify right side
    70,336.94x = 3,737,534,187.49
  5. Step 5: Solve for x
    x = 3,737,534,187.49/70,336.94
  6. Step 6: Final answer
    x = 53,137.58

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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.