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Finding the Fourth Proportional to 9,980,903.20, 14,943,361.20 and 9,700,967.20

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Solution

The fourth proportional to 9,980,903.20, 14,943,361.20 and 9,700,967.20 is: 14,524,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980,903.20 : 14,943,361.20 = 9,700,967.20 : x
  2. Step 2: Convert to fraction form
    9,980,903.20/14,943,361.20 = 9,700,967.20/x
  3. Step 3: Cross multiply
    9,980,903.20x = 14,943,361.20 × 9,700,967.20
  4. Step 4: Simplify right side
    9,980,903.20x = 144,965,056,858,952.62
  5. Step 5: Solve for x
    x = 144,965,056,858,952.62/9,980,903.20
  6. Step 6: Final answer
    x = 14,524,242.34

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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.