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Finding the Fourth Proportional to 8,719.98, 12,033.27 and 4,740.99

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Solution

The fourth proportional to 8,719.98, 12,033.27 and 4,740.99 is: 6,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.98 : 12,033.27 = 4,740.99 : x
  2. Step 2: Convert to fraction form
    8,719.98/12,033.27 = 4,740.99/x
  3. Step 3: Cross multiply
    8,719.98x = 12,033.27 × 4,740.99
  4. Step 4: Simplify right side
    8,719.98x = 57,049,612.74
  5. Step 5: Solve for x
    x = 57,049,612.74/8,719.98
  6. Step 6: Final answer
    x = 6,542.40

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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.