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Finding the Fourth Proportional to 70,485.46, 97,270.06 and 38,654.58

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Solution

The fourth proportional to 70,485.46, 97,270.06 and 38,654.58 is: 53,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.46 : 97,270.06 = 38,654.58 : x
  2. Step 2: Convert to fraction form
    70,485.46/97,270.06 = 38,654.58/x
  3. Step 3: Cross multiply
    70,485.46x = 97,270.06 × 38,654.58
  4. Step 4: Simplify right side
    70,485.46x = 3,759,933,315.87
  5. Step 5: Solve for x
    x = 3,759,933,315.87/70,485.46
  6. Step 6: Final answer
    x = 53,343.39

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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.