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Finding the Fourth Proportional to 8,549.66, 11,798.72 and 4,721.29

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Solution

The fourth proportional to 8,549.66, 11,798.72 and 4,721.29 is: 6,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.66 : 11,798.72 = 4,721.29 : x
  2. Step 2: Convert to fraction form
    8,549.66/11,798.72 = 4,721.29/x
  3. Step 3: Cross multiply
    8,549.66x = 11,798.72 × 4,721.29
  4. Step 4: Simplify right side
    8,549.66x = 55,705,143.35
  5. Step 5: Solve for x
    x = 55,705,143.35/8,549.66
  6. Step 6: Final answer
    x = 6,515.48

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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.