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Finding the Fourth Proportional to 26,459.04, 39,684 and 7,485

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Solution

The fourth proportional to 26,459.04, 39,684 and 7,485 is: 11,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,459.04 : 39,684 = 7,485 : x
  2. Step 2: Convert to fraction form
    26,459.04/39,684 = 7,485/x
  3. Step 3: Cross multiply
    26,459.04x = 39,684 × 7,485
  4. Step 4: Simplify right side
    26,459.04x = 297,034,740
  5. Step 5: Solve for x
    x = 297,034,740/26,459.04
  6. Step 6: Final answer
    x = 11,226.21

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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.