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Finding the Fourth Proportional to 70,335.87, 97,065.21 and 38,504.67

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Solution

The fourth proportional to 70,335.87, 97,065.21 and 38,504.67 is: 53,137.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,335.87 : 97,065.21 = 38,504.67 : x
  2. Step 2: Convert to fraction form
    70,335.87/97,065.21 = 38,504.67/x
  3. Step 3: Cross multiply
    70,335.87x = 97,065.21 × 38,504.67
  4. Step 4: Simplify right side
    70,335.87x = 3,737,463,879.53
  5. Step 5: Solve for x
    x = 3,737,463,879.53/70,335.87
  6. Step 6: Final answer
    x = 53,137.38

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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.