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Finding the Fourth Proportional to 3,887,352.80, 5,828,404.80 and 2,066,019.20

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Solution

The fourth proportional to 3,887,352.80, 5,828,404.80 and 2,066,019.20 is: 3,097,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,352.80 : 5,828,404.80 = 2,066,019.20 : x
  2. Step 2: Convert to fraction form
    3,887,352.80/5,828,404.80 = 2,066,019.20/x
  3. Step 3: Cross multiply
    3,887,352.80x = 5,828,404.80 × 2,066,019.20
  4. Step 4: Simplify right side
    3,887,352.80x = 12,041,596,222,172.16
  5. Step 5: Solve for x
    x = 12,041,596,222,172.16/3,887,352.80
  6. Step 6: Final answer
    x = 3,097,634.00

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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.