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Finding the Fourth Proportional to 8,967.57, 12,374.94 and 4,988.85

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Solution

The fourth proportional to 8,967.57, 12,374.94 and 4,988.85 is: 6,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.57 : 12,374.94 = 4,988.85 : x
  2. Step 2: Convert to fraction form
    8,967.57/12,374.94 = 4,988.85/x
  3. Step 3: Cross multiply
    8,967.57x = 12,374.94 × 4,988.85
  4. Step 4: Simplify right side
    8,967.57x = 61,736,719.42
  5. Step 5: Solve for x
    x = 61,736,719.42/8,967.57
  6. Step 6: Final answer
    x = 6,884.44

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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.