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Finding the Fourth Proportional to 7,141,862.13, 9,855,827.64 and 3,878,700.22

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Solution

The fourth proportional to 7,141,862.13, 9,855,827.64 and 3,878,700.22 is: 5,352,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141,862.13 : 9,855,827.64 = 3,878,700.22 : x
  2. Step 2: Convert to fraction form
    7,141,862.13/9,855,827.64 = 3,878,700.22/x
  3. Step 3: Cross multiply
    7,141,862.13x = 9,855,827.64 × 3,878,700.22
  4. Step 4: Simplify right side
    7,141,862.13x = 38,227,800,835,550.09
  5. Step 5: Solve for x
    x = 38,227,800,835,550.09/7,141,862.13
  6. Step 6: Final answer
    x = 5,352,637.75

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