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Finding the Fourth Proportional to 2,052.48, 2,832 and 1,224

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Solution

The fourth proportional to 2,052.48, 2,832 and 1,224 is: 1,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.48 : 2,832 = 1,224 : x
  2. Step 2: Convert to fraction form
    2,052.48/2,832 = 1,224/x
  3. Step 3: Cross multiply
    2,052.48x = 2,832 × 1,224
  4. Step 4: Simplify right side
    2,052.48x = 3,466,368
  5. Step 5: Solve for x
    x = 3,466,368/2,052.48
  6. Step 6: Final answer
    x = 1,688.87

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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.