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Finding the Fourth Proportional to 8,653.18, 12,994.35 and 8,585.14

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Solution

The fourth proportional to 8,653.18, 12,994.35 and 8,585.14 is: 12,892.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.18 : 12,994.35 = 8,585.14 : x
  2. Step 2: Convert to fraction form
    8,653.18/12,994.35 = 8,585.14/x
  3. Step 3: Cross multiply
    8,653.18x = 12,994.35 × 8,585.14
  4. Step 4: Simplify right side
    8,653.18x = 111,558,313.96
  5. Step 5: Solve for x
    x = 111,558,313.96/8,653.18
  6. Step 6: Final answer
    x = 12,892.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.