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Finding the Fourth Proportional to 70,054.47, 96,676.94 and 38,223.90

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Solution

The fourth proportional to 70,054.47, 96,676.94 and 38,223.90 is: 52,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,054.47 : 96,676.94 = 38,223.90 : x
  2. Step 2: Convert to fraction form
    70,054.47/96,676.94 = 38,223.90/x
  3. Step 3: Cross multiply
    70,054.47x = 96,676.94 × 38,223.90
  4. Step 4: Simplify right side
    70,054.47x = 3,695,369,782.43
  5. Step 5: Solve for x
    x = 3,695,369,782.43/70,054.47
  6. Step 6: Final answer
    x = 52,749.95

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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.