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Finding the Fourth Proportional to 9,331,811.20, 13,997,716.80 and 9,331,811.20

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Solution

The fourth proportional to 9,331,811.20, 13,997,716.80 and 9,331,811.20 is: 13,997,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331,811.20 : 13,997,716.80 = 9,331,811.20 : x
  2. Step 2: Convert to fraction form
    9,331,811.20/13,997,716.80 = 9,331,811.20/x
  3. Step 3: Cross multiply
    9,331,811.20x = 13,997,716.80 × 9,331,811.20
  4. Step 4: Simplify right side
    9,331,811.20x = 130,624,050,408,668.16
  5. Step 5: Solve for x
    x = 130,624,050,408,668.16/9,331,811.20
  6. Step 6: Final answer
    x = 13,997,716.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.