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Finding the Fourth Proportional to 4,718.90, 7,077.42 and 4,484.74

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Solution

The fourth proportional to 4,718.90, 7,077.42 and 4,484.74 is: 6,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.90 : 7,077.42 = 4,484.74 : x
  2. Step 2: Convert to fraction form
    4,718.90/7,077.42 = 4,484.74/x
  3. Step 3: Cross multiply
    4,718.90x = 7,077.42 × 4,484.74
  4. Step 4: Simplify right side
    4,718.90x = 31,740,370.88
  5. Step 5: Solve for x
    x = 31,740,370.88/4,718.90
  6. Step 6: Final answer
    x = 6,726.23

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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.