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Finding the Fourth Proportional to 70,336.50, 97,064.43 and 38,507.34

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Solution

The fourth proportional to 70,336.50, 97,064.43 and 38,507.34 is: 53,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,336.50 : 97,064.43 = 38,507.34 : x
  2. Step 2: Convert to fraction form
    70,336.50/97,064.43 = 38,507.34/x
  3. Step 3: Cross multiply
    70,336.50x = 97,064.43 × 38,507.34
  4. Step 4: Simplify right side
    70,336.50x = 3,737,693,007.92
  5. Step 5: Solve for x
    x = 3,737,693,007.92/70,336.50
  6. Step 6: Final answer
    x = 53,140.16

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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.