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Finding the Fourth Proportional to 70,415.50, 97,173.39 and 38,585.61

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Solution

The fourth proportional to 70,415.50, 97,173.39 and 38,585.61 is: 53,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.50 : 97,173.39 = 38,585.61 : x
  2. Step 2: Convert to fraction form
    70,415.50/97,173.39 = 38,585.61/x
  3. Step 3: Cross multiply
    70,415.50x = 97,173.39 × 38,585.61
  4. Step 4: Simplify right side
    70,415.50x = 3,749,494,528.92
  5. Step 5: Solve for x
    x = 3,749,494,528.92/70,415.50
  6. Step 6: Final answer
    x = 53,248.14

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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.