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Finding the Fourth Proportional to 8,820.66, 12,172.73 and 4,841.73

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Solution

The fourth proportional to 8,820.66, 12,172.73 and 4,841.73 is: 6,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.66 : 12,172.73 = 4,841.73 : x
  2. Step 2: Convert to fraction form
    8,820.66/12,172.73 = 4,841.73/x
  3. Step 3: Cross multiply
    8,820.66x = 12,172.73 × 4,841.73
  4. Step 4: Simplify right side
    8,820.66x = 58,937,047.81
  5. Step 5: Solve for x
    x = 58,937,047.81/8,820.66
  6. Step 6: Final answer
    x = 6,681.70

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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.