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Finding the Fourth Proportional to 7,830, 10,807.83 and 5,035.50

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Solution

The fourth proportional to 7,830, 10,807.83 and 5,035.50 is: 6,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830 : 10,807.83 = 5,035.50 : x
  2. Step 2: Convert to fraction form
    7,830/10,807.83 = 5,035.50/x
  3. Step 3: Cross multiply
    7,830x = 10,807.83 × 5,035.50
  4. Step 4: Simplify right side
    7,830x = 54,422,827.97
  5. Step 5: Solve for x
    x = 54,422,827.97/7,830
  6. Step 6: Final answer
    x = 6,950.55

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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.