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Finding the Fourth Proportional to 9,980,895.87, 14,978,031.30 and 3,503,990.43

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Solution

The fourth proportional to 9,980,895.87, 14,978,031.30 and 3,503,990.43 is: 5,258,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980,895.87 : 14,978,031.30 = 3,503,990.43 : x
  2. Step 2: Convert to fraction form
    9,980,895.87/14,978,031.30 = 3,503,990.43/x
  3. Step 3: Cross multiply
    9,980,895.87x = 14,978,031.30 × 3,503,990.43
  4. Step 4: Simplify right side
    9,980,895.87x = 52,482,878,335,440.46
  5. Step 5: Solve for x
    x = 52,482,878,335,440.46/9,980,895.87
  6. Step 6: Final answer
    x = 5,258,333.42

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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.