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Finding the Fourth Proportional to 1,567.68, 2,352.01 and 943.65

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Solution

The fourth proportional to 1,567.68, 2,352.01 and 943.65 is: 1,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.68 : 2,352.01 = 943.65 : x
  2. Step 2: Convert to fraction form
    1,567.68/2,352.01 = 943.65/x
  3. Step 3: Cross multiply
    1,567.68x = 2,352.01 × 943.65
  4. Step 4: Simplify right side
    1,567.68x = 2,219,474.24
  5. Step 5: Solve for x
    x = 2,219,474.24/1,567.68
  6. Step 6: Final answer
    x = 1,415.77

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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.