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Finding the Fourth Proportional to 9,951,472.80, 14,929,052.40 and 3,220,106.40

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Solution

The fourth proportional to 9,951,472.80, 14,929,052.40 and 3,220,106.40 is: 4,830,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,951,472.80 : 14,929,052.40 = 3,220,106.40 : x
  2. Step 2: Convert to fraction form
    9,951,472.80/14,929,052.40 = 3,220,106.40/x
  3. Step 3: Cross multiply
    9,951,472.80x = 14,929,052.40 × 3,220,106.40
  4. Step 4: Simplify right side
    9,951,472.80x = 48,073,137,179,175.36
  5. Step 5: Solve for x
    x = 48,073,137,179,175.36/9,951,472.80
  6. Step 6: Final answer
    x = 4,830,756.02

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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.