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Finding the Fourth Proportional to 9,661,722.40, 14,492,583.60 and 2,930,471.20

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Solution

The fourth proportional to 9,661,722.40, 14,492,583.60 and 2,930,471.20 is: 4,395,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661,722.40 : 14,492,583.60 = 2,930,471.20 : x
  2. Step 2: Convert to fraction form
    9,661,722.40/14,492,583.60 = 2,930,471.20/x
  3. Step 3: Cross multiply
    9,661,722.40x = 14,492,583.60 × 2,930,471.20
  4. Step 4: Simplify right side
    9,661,722.40x = 42,470,098,853,392.32
  5. Step 5: Solve for x
    x = 42,470,098,853,392.32/9,661,722.40
  6. Step 6: Final answer
    x = 4,395,706.80

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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.