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Finding the Fourth Proportional to 17,673.16, 26,484.74 and 12,719.40

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Solution

The fourth proportional to 17,673.16, 26,484.74 and 12,719.40 is: 19,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,673.16 : 26,484.74 = 12,719.40 : x
  2. Step 2: Convert to fraction form
    17,673.16/26,484.74 = 12,719.40/x
  3. Step 3: Cross multiply
    17,673.16x = 26,484.74 × 12,719.40
  4. Step 4: Simplify right side
    17,673.16x = 336,870,001.96
  5. Step 5: Solve for x
    x = 336,870,001.96/17,673.16
  6. Step 6: Final answer
    x = 19,061.11

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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.