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Finding the Fourth Proportional to 8,701.70, 12,008.16 and 4,924.79

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Solution

The fourth proportional to 8,701.70, 12,008.16 and 4,924.79 is: 6,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.70 : 12,008.16 = 4,924.79 : x
  2. Step 2: Convert to fraction form
    8,701.70/12,008.16 = 4,924.79/x
  3. Step 3: Cross multiply
    8,701.70x = 12,008.16 × 4,924.79
  4. Step 4: Simplify right side
    8,701.70x = 59,137,696.31
  5. Step 5: Solve for x
    x = 59,137,696.31/8,701.70
  6. Step 6: Final answer
    x = 6,796.11

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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.