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Finding the Fourth Proportional to 70,662.34, 97,510.42 and 38,825.09

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Solution

The fourth proportional to 70,662.34, 97,510.42 and 38,825.09 is: 53,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,662.34 : 97,510.42 = 38,825.09 : x
  2. Step 2: Convert to fraction form
    70,662.34/97,510.42 = 38,825.09/x
  3. Step 3: Cross multiply
    70,662.34x = 97,510.42 × 38,825.09
  4. Step 4: Simplify right side
    70,662.34x = 3,785,850,150.76
  5. Step 5: Solve for x
    x = 3,785,850,150.76/70,662.34
  6. Step 6: Final answer
    x = 53,576.64

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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.