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Finding the Fourth Proportional to 6,643,530.90, 9,965,296.35 and 5,803,722.90

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Solution

The fourth proportional to 6,643,530.90, 9,965,296.35 and 5,803,722.90 is: 8,705,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,530.90 : 9,965,296.35 = 5,803,722.90 : x
  2. Step 2: Convert to fraction form
    6,643,530.90/9,965,296.35 = 5,803,722.90/x
  3. Step 3: Cross multiply
    6,643,530.90x = 9,965,296.35 × 5,803,722.90
  4. Step 4: Simplify right side
    6,643,530.90x = 57,835,818,631,781.41
  5. Step 5: Solve for x
    x = 57,835,818,631,781.41/6,643,530.90
  6. Step 6: Final answer
    x = 8,705,584.35

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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.