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Finding the Fourth Proportional to 70,890.98, 97,833.96 and 39,059.87

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Solution

The fourth proportional to 70,890.98, 97,833.96 and 39,059.87 is: 53,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.98 : 97,833.96 = 39,059.87 : x
  2. Step 2: Convert to fraction form
    70,890.98/97,833.96 = 39,059.87/x
  3. Step 3: Cross multiply
    70,890.98x = 97,833.96 × 39,059.87
  4. Step 4: Simplify right side
    70,890.98x = 3,821,381,270.02
  5. Step 5: Solve for x
    x = 3,821,381,270.02/70,890.98
  6. Step 6: Final answer
    x = 53,905.05

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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.