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Finding the Fourth Proportional to 56,208.40, 84,314.04 and 26,619.28

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Solution

The fourth proportional to 56,208.40, 84,314.04 and 26,619.28 is: 39,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,208.40 : 84,314.04 = 26,619.28 : x
  2. Step 2: Convert to fraction form
    56,208.40/84,314.04 = 26,619.28/x
  3. Step 3: Cross multiply
    56,208.40x = 84,314.04 × 26,619.28
  4. Step 4: Simplify right side
    56,208.40x = 2,244,379,038.69
  5. Step 5: Solve for x
    x = 2,244,379,038.69/56,208.40
  6. Step 6: Final answer
    x = 39,929.60

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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.