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Finding the Fourth Proportional to 70,756.89, 97,658.46 and 40,562.48

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Solution

The fourth proportional to 70,756.89, 97,658.46 and 40,562.48 is: 55,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,756.89 : 97,658.46 = 40,562.48 : x
  2. Step 2: Convert to fraction form
    70,756.89/97,658.46 = 40,562.48/x
  3. Step 3: Cross multiply
    70,756.89x = 97,658.46 × 40,562.48
  4. Step 4: Simplify right side
    70,756.89x = 3,961,269,574.73
  5. Step 5: Solve for x
    x = 3,961,269,574.73/70,756.89
  6. Step 6: Final answer
    x = 55,984.23

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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.