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Finding the Fourth Proportional to 70,652.82, 97,505.55 and 38,821.98

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Solution

The fourth proportional to 70,652.82, 97,505.55 and 38,821.98 is: 53,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,652.82 : 97,505.55 = 38,821.98 : x
  2. Step 2: Convert to fraction form
    70,652.82/97,505.55 = 38,821.98/x
  3. Step 3: Cross multiply
    70,652.82x = 97,505.55 × 38,821.98
  4. Step 4: Simplify right side
    70,652.82x = 3,785,358,511.99
  5. Step 5: Solve for x
    x = 3,785,358,511.99/70,652.82
  6. Step 6: Final answer
    x = 53,576.89

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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.