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Finding the Fourth Proportional to 4,638.48, 6,960.48 and 1,718.82

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Solution

The fourth proportional to 4,638.48, 6,960.48 and 1,718.82 is: 2,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.48 : 6,960.48 = 1,718.82 : x
  2. Step 2: Convert to fraction form
    4,638.48/6,960.48 = 1,718.82/x
  3. Step 3: Cross multiply
    4,638.48x = 6,960.48 × 1,718.82
  4. Step 4: Simplify right side
    4,638.48x = 11,963,812.23
  5. Step 5: Solve for x
    x = 11,963,812.23/4,638.48
  6. Step 6: Final answer
    x = 2,579.25

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1.5x scale

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.