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Finding the Fourth Proportional to 8,605.46, 11,875.53 and 4,828.10

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Solution

The fourth proportional to 8,605.46, 11,875.53 and 4,828.10 is: 6,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.46 : 11,875.53 = 4,828.10 : x
  2. Step 2: Convert to fraction form
    8,605.46/11,875.53 = 4,828.10/x
  3. Step 3: Cross multiply
    8,605.46x = 11,875.53 × 4,828.10
  4. Step 4: Simplify right side
    8,605.46x = 57,336,249.65
  5. Step 5: Solve for x
    x = 57,336,249.65/8,605.46
  6. Step 6: Final answer
    x = 6,662.78

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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.