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Finding the Fourth Proportional to 17,812.65, 26,719.05 and 9,927.15

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Solution

The fourth proportional to 17,812.65, 26,719.05 and 9,927.15 is: 14,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.65 : 26,719.05 = 9,927.15 : x
  2. Step 2: Convert to fraction form
    17,812.65/26,719.05 = 9,927.15/x
  3. Step 3: Cross multiply
    17,812.65x = 26,719.05 × 9,927.15
  4. Step 4: Simplify right side
    17,812.65x = 265,244,017.21
  5. Step 5: Solve for x
    x = 265,244,017.21/17,812.65
  6. Step 6: Final answer
    x = 14,890.77

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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.