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Finding the Fourth Proportional to 6,626,039.88, 9,939,281.76 and 1,833,328.20

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Solution

The fourth proportional to 6,626,039.88, 9,939,281.76 and 1,833,328.20 is: 2,750,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626,039.88 : 9,939,281.76 = 1,833,328.20 : x
  2. Step 2: Convert to fraction form
    6,626,039.88/9,939,281.76 = 1,833,328.20/x
  3. Step 3: Cross multiply
    6,626,039.88x = 9,939,281.76 × 1,833,328.20
  4. Step 4: Simplify right side
    6,626,039.88x = 18,221,965,538,353.63
  5. Step 5: Solve for x
    x = 18,221,965,538,353.63/6,626,039.88
  6. Step 6: Final answer
    x = 2,750,053.71

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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.