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Finding the Fourth Proportional to 8,898.76, 12,278.06 and 5,069.58

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Solution

The fourth proportional to 8,898.76, 12,278.06 and 5,069.58 is: 6,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.76 : 12,278.06 = 5,069.58 : x
  2. Step 2: Convert to fraction form
    8,898.76/12,278.06 = 5,069.58/x
  3. Step 3: Cross multiply
    8,898.76x = 12,278.06 × 5,069.58
  4. Step 4: Simplify right side
    8,898.76x = 62,244,607.41
  5. Step 5: Solve for x
    x = 62,244,607.41/8,898.76
  6. Step 6: Final answer
    x = 6,994.75

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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.