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Finding the Fourth Proportional to 9,274,015.20, 12,957,079.20 and 9,274,015.20

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Solution

The fourth proportional to 9,274,015.20, 12,957,079.20 and 9,274,015.20 is: 12,957,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274,015.20 : 12,957,079.20 = 9,274,015.20 : x
  2. Step 2: Convert to fraction form
    9,274,015.20/12,957,079.20 = 9,274,015.20/x
  3. Step 3: Cross multiply
    9,274,015.20x = 12,957,079.20 × 9,274,015.20
  4. Step 4: Simplify right side
    9,274,015.20x = 120,164,149,448,403.83
  5. Step 5: Solve for x
    x = 120,164,149,448,403.83/9,274,015.20
  6. Step 6: Final answer
    x = 12,957,079.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.