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Finding the Fourth Proportional to 70,688.69, 97,550.59 and 40,474.48

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Solution

The fourth proportional to 70,688.69, 97,550.59 and 40,474.48 is: 55,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,688.69 : 97,550.59 = 40,474.48 : x
  2. Step 2: Convert to fraction form
    70,688.69/97,550.59 = 40,474.48/x
  3. Step 3: Cross multiply
    70,688.69x = 97,550.59 × 40,474.48
  4. Step 4: Simplify right side
    70,688.69x = 3,948,309,403.94
  5. Step 5: Solve for x
    x = 3,948,309,403.94/70,688.69
  6. Step 6: Final answer
    x = 55,854.90

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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.