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Finding the Fourth Proportional to 5,303.76, 7,318.94 and 2,946.05

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Solution

The fourth proportional to 5,303.76, 7,318.94 and 2,946.05 is: 4,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.76 : 7,318.94 = 2,946.05 : x
  2. Step 2: Convert to fraction form
    5,303.76/7,318.94 = 2,946.05/x
  3. Step 3: Cross multiply
    5,303.76x = 7,318.94 × 2,946.05
  4. Step 4: Simplify right side
    5,303.76x = 21,561,939.31
  5. Step 5: Solve for x
    x = 21,561,939.31/5,303.76
  6. Step 6: Final answer
    x = 4,065.41

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Why These Related Problems?

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