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Finding the Fourth Proportional to 70,117.71, 96,762.43 and 38,286.63

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Solution

The fourth proportional to 70,117.71, 96,762.43 and 38,286.63 is: 52,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,117.71 : 96,762.43 = 38,286.63 : x
  2. Step 2: Convert to fraction form
    70,117.71/96,762.43 = 38,286.63/x
  3. Step 3: Cross multiply
    70,117.71x = 96,762.43 × 38,286.63
  4. Step 4: Simplify right side
    70,117.71x = 3,704,707,355.31
  5. Step 5: Solve for x
    x = 3,704,707,355.31/70,117.71
  6. Step 6: Final answer
    x = 52,835.54

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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.