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Finding the Fourth Proportional to 70,361.60, 97,098.80 and 38,532.48

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Solution

The fourth proportional to 70,361.60, 97,098.80 and 38,532.48 is: 53,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,361.60 : 97,098.80 = 38,532.48 : x
  2. Step 2: Convert to fraction form
    70,361.60/97,098.80 = 38,532.48/x
  3. Step 3: Cross multiply
    70,361.60x = 97,098.80 × 38,532.48
  4. Step 4: Simplify right side
    70,361.60x = 3,741,457,569.02
  5. Step 5: Solve for x
    x = 3,741,457,569.02/70,361.60
  6. Step 6: Final answer
    x = 53,174.71

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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.