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Finding the Fourth Proportional to 59,855.68, 89,784.40 and 17,740

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Solution

The fourth proportional to 59,855.68, 89,784.40 and 17,740 is: 26,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,855.68 : 89,784.40 = 17,740 : x
  2. Step 2: Convert to fraction form
    59,855.68/89,784.40 = 17,740/x
  3. Step 3: Cross multiply
    59,855.68x = 89,784.40 × 17,740
  4. Step 4: Simplify right side
    59,855.68x = 1,592,775,256
  5. Step 5: Solve for x
    x = 1,592,775,256/59,855.68
  6. Step 6: Final answer
    x = 26,610.26

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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.