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Finding the Fourth Proportional to 16,710.65, 25,065.72 and 4,230.57

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Solution

The fourth proportional to 16,710.65, 25,065.72 and 4,230.57 is: 6,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,710.65 : 25,065.72 = 4,230.57 : x
  2. Step 2: Convert to fraction form
    16,710.65/25,065.72 = 4,230.57/x
  3. Step 3: Cross multiply
    16,710.65x = 25,065.72 × 4,230.57
  4. Step 4: Simplify right side
    16,710.65x = 106,042,283.06
  5. Step 5: Solve for x
    x = 106,042,283.06/16,710.65
  6. Step 6: Final answer
    x = 6,345.79

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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.