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Finding the Fourth Proportional to 6,461,605.08, 8,917,075.89 and 3,561,100.38

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Solution

The fourth proportional to 6,461,605.08, 8,917,075.89 and 3,561,100.38 is: 4,914,352.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461,605.08 : 8,917,075.89 = 3,561,100.38 : x
  2. Step 2: Convert to fraction form
    6,461,605.08/8,917,075.89 = 3,561,100.38/x
  3. Step 3: Cross multiply
    6,461,605.08x = 8,917,075.89 × 3,561,100.38
  4. Step 4: Simplify right side
    6,461,605.08x = 31,754,602,340,367.84
  5. Step 5: Solve for x
    x = 31,754,602,340,367.84/6,461,605.08
  6. Step 6: Final answer
    x = 4,914,352.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.