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Finding the Fourth Proportional to 4,781.40, 7,207.05 and 4,583.64

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Solution

The fourth proportional to 4,781.40, 7,207.05 and 4,583.64 is: 6,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.40 : 7,207.05 = 4,583.64 : x
  2. Step 2: Convert to fraction form
    4,781.40/7,207.05 = 4,583.64/x
  3. Step 3: Cross multiply
    4,781.40x = 7,207.05 × 4,583.64
  4. Step 4: Simplify right side
    4,781.40x = 33,034,522.66
  5. Step 5: Solve for x
    x = 33,034,522.66/4,781.40
  6. Step 6: Final answer
    x = 6,908.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.