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Finding the Fourth Proportional to 3,068.63, 4,602.94 and 760.13

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Solution

The fourth proportional to 3,068.63, 4,602.94 and 760.13 is: 1,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.63 : 4,602.94 = 760.13 : x
  2. Step 2: Convert to fraction form
    3,068.63/4,602.94 = 760.13/x
  3. Step 3: Cross multiply
    3,068.63x = 4,602.94 × 760.13
  4. Step 4: Simplify right side
    3,068.63x = 3,498,807.87
  5. Step 5: Solve for x
    x = 3,498,807.87/3,068.63
  6. Step 6: Final answer
    x = 1,140.19

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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.