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Finding the Fourth Proportional to 2,685.95, 4,030.29 and 1,300.47

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Solution

The fourth proportional to 2,685.95, 4,030.29 and 1,300.47 is: 1,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.95 : 4,030.29 = 1,300.47 : x
  2. Step 2: Convert to fraction form
    2,685.95/4,030.29 = 1,300.47/x
  3. Step 3: Cross multiply
    2,685.95x = 4,030.29 × 1,300.47
  4. Step 4: Simplify right side
    2,685.95x = 5,241,271.24
  5. Step 5: Solve for x
    x = 5,241,271.24/2,685.95
  6. Step 6: Final answer
    x = 1,951.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.