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Finding the Fourth Proportional to 52,467.88, 78,703.74 and 21,302.44

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Solution

The fourth proportional to 52,467.88, 78,703.74 and 21,302.44 is: 31,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,467.88 : 78,703.74 = 21,302.44 : x
  2. Step 2: Convert to fraction form
    52,467.88/78,703.74 = 21,302.44/x
  3. Step 3: Cross multiply
    52,467.88x = 78,703.74 × 21,302.44
  4. Step 4: Simplify right side
    52,467.88x = 1,676,581,699.13
  5. Step 5: Solve for x
    x = 1,676,581,699.13/52,467.88
  6. Step 6: Final answer
    x = 31,954.44

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1.5x scale

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.