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Finding the Fourth Proportional to 6,648,720.30, 9,973,080.45 and 6,606,729.90

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Solution

The fourth proportional to 6,648,720.30, 9,973,080.45 and 6,606,729.90 is: 9,910,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648,720.30 : 9,973,080.45 = 6,606,729.90 : x
  2. Step 2: Convert to fraction form
    6,648,720.30/9,973,080.45 = 6,606,729.90/x
  3. Step 3: Cross multiply
    6,648,720.30x = 9,973,080.45 × 6,606,729.90
  4. Step 4: Simplify right side
    6,648,720.30x = 65,889,448,804,120.45
  5. Step 5: Solve for x
    x = 65,889,448,804,120.45/6,648,720.30
  6. Step 6: Final answer
    x = 9,910,094.85

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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.