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Finding the Fourth Proportional to 70,800.66, 97,704.94 and 38,969.33

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Solution

The fourth proportional to 70,800.66, 97,704.94 and 38,969.33 is: 53,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,800.66 : 97,704.94 = 38,969.33 : x
  2. Step 2: Convert to fraction form
    70,800.66/97,704.94 = 38,969.33/x
  3. Step 3: Cross multiply
    70,800.66x = 97,704.94 × 38,969.33
  4. Step 4: Simplify right side
    70,800.66x = 3,807,495,854.64
  5. Step 5: Solve for x
    x = 3,807,495,854.64/70,800.66
  6. Step 6: Final answer
    x = 53,777.69

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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.