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Finding the Fourth Proportional to 4,169.76, 6,254.16 and 1,572

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Solution

The fourth proportional to 4,169.76, 6,254.16 and 1,572 is: 2,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,169.76 : 6,254.16 = 1,572 : x
  2. Step 2: Convert to fraction form
    4,169.76/6,254.16 = 1,572/x
  3. Step 3: Cross multiply
    4,169.76x = 6,254.16 × 1,572
  4. Step 4: Simplify right side
    4,169.76x = 9,831,539.52
  5. Step 5: Solve for x
    x = 9,831,539.52/4,169.76
  6. Step 6: Final answer
    x = 2,357.82

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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.