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Finding the Fourth Proportional to 70,460.70, 97,235.55 and 38,629.50

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Solution

The fourth proportional to 70,460.70, 97,235.55 and 38,629.50 is: 53,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460.70 : 97,235.55 = 38,629.50 : x
  2. Step 2: Convert to fraction form
    70,460.70/97,235.55 = 38,629.50/x
  3. Step 3: Cross multiply
    70,460.70x = 97,235.55 × 38,629.50
  4. Step 4: Simplify right side
    70,460.70x = 3,756,160,678.73
  5. Step 5: Solve for x
    x = 3,756,160,678.73/70,460.70
  6. Step 6: Final answer
    x = 53,308.59

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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.