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Finding the Fourth Proportional to 17,762.62, 26,618.50 and 13,045.62

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Solution

The fourth proportional to 17,762.62, 26,618.50 and 13,045.62 is: 19,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,762.62 : 26,618.50 = 13,045.62 : x
  2. Step 2: Convert to fraction form
    17,762.62/26,618.50 = 13,045.62/x
  3. Step 3: Cross multiply
    17,762.62x = 26,618.50 × 13,045.62
  4. Step 4: Simplify right side
    17,762.62x = 347,254,835.97
  5. Step 5: Solve for x
    x = 347,254,835.97/17,762.62
  6. Step 6: Final answer
    x = 19,549.75

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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.