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Finding the Fourth Proportional to 4,870.16, 6,721.08 and 2,774.96

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Solution

The fourth proportional to 4,870.16, 6,721.08 and 2,774.96 is: 3,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.16 : 6,721.08 = 2,774.96 : x
  2. Step 2: Convert to fraction form
    4,870.16/6,721.08 = 2,774.96/x
  3. Step 3: Cross multiply
    4,870.16x = 6,721.08 × 2,774.96
  4. Step 4: Simplify right side
    4,870.16x = 18,650,728.16
  5. Step 5: Solve for x
    x = 18,650,728.16/4,870.16
  6. Step 6: Final answer
    x = 3,829.59

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1.5x scale

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.