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Finding the Fourth Proportional to 8,585.89, 12,870.07 and 4,832.14

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Solution

The fourth proportional to 8,585.89, 12,870.07 and 4,832.14 is: 7,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.89 : 12,870.07 = 4,832.14 : x
  2. Step 2: Convert to fraction form
    8,585.89/12,870.07 = 4,832.14/x
  3. Step 3: Cross multiply
    8,585.89x = 12,870.07 × 4,832.14
  4. Step 4: Simplify right side
    8,585.89x = 62,189,980.05
  5. Step 5: Solve for x
    x = 62,189,980.05/8,585.89
  6. Step 6: Final answer
    x = 7,243.28

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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.