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Finding the Fourth Proportional to 8,853.74, 12,214.06 and 5,710.94

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Solution

The fourth proportional to 8,853.74, 12,214.06 and 5,710.94 is: 7,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.74 : 12,214.06 = 5,710.94 : x
  2. Step 2: Convert to fraction form
    8,853.74/12,214.06 = 5,710.94/x
  3. Step 3: Cross multiply
    8,853.74x = 12,214.06 × 5,710.94
  4. Step 4: Simplify right side
    8,853.74x = 69,753,763.82
  5. Step 5: Solve for x
    x = 69,753,763.82/8,853.74
  6. Step 6: Final answer
    x = 7,878.45

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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.