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Finding the Fourth Proportional to 6,625,898.51, 9,939,070.13 and 1,833,186.42

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Solution

The fourth proportional to 6,625,898.51, 9,939,070.13 and 1,833,186.42 is: 2,749,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625,898.51 : 9,939,070.13 = 1,833,186.42 : x
  2. Step 2: Convert to fraction form
    6,625,898.51/9,939,070.13 = 1,833,186.42/x
  3. Step 3: Cross multiply
    6,625,898.51x = 9,939,070.13 × 1,833,186.42
  4. Step 4: Simplify right side
    6,625,898.51x = 18,220,168,380,577.70
  5. Step 5: Solve for x
    x = 18,220,168,380,577.70/6,625,898.51
  6. Step 6: Final answer
    x = 2,749,841.15

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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.