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Finding the Fourth Proportional to 8,878.91, 12,252.94 and 4,900.03

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Solution

The fourth proportional to 8,878.91, 12,252.94 and 4,900.03 is: 6,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.91 : 12,252.94 = 4,900.03 : x
  2. Step 2: Convert to fraction form
    8,878.91/12,252.94 = 4,900.03/x
  3. Step 3: Cross multiply
    8,878.91x = 12,252.94 × 4,900.03
  4. Step 4: Simplify right side
    8,878.91x = 60,039,730.71
  5. Step 5: Solve for x
    x = 60,039,730.71/8,878.91
  6. Step 6: Final answer
    x = 6,762.06

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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.