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Finding the Fourth Proportional to 2,805.04, 3,870.02 and 1,810.98

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Solution

The fourth proportional to 2,805.04, 3,870.02 and 1,810.98 is: 2,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.04 : 3,870.02 = 1,810.98 : x
  2. Step 2: Convert to fraction form
    2,805.04/3,870.02 = 1,810.98/x
  3. Step 3: Cross multiply
    2,805.04x = 3,870.02 × 1,810.98
  4. Step 4: Simplify right side
    2,805.04x = 7,008,533.35
  5. Step 5: Solve for x
    x = 7,008,533.35/2,805.04
  6. Step 6: Final answer
    x = 2,498.55

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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.