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Finding the Fourth Proportional to 53,246.78, 79,840.22 and 17,689.08

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Solution

The fourth proportional to 53,246.78, 79,840.22 and 17,689.08 is: 26,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,246.78 : 79,840.22 = 17,689.08 : x
  2. Step 2: Convert to fraction form
    53,246.78/79,840.22 = 17,689.08/x
  3. Step 3: Cross multiply
    53,246.78x = 79,840.22 × 17,689.08
  4. Step 4: Simplify right side
    53,246.78x = 1,412,300,038.80
  5. Step 5: Solve for x
    x = 1,412,300,038.80/53,246.78
  6. Step 6: Final answer
    x = 26,523.67

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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.