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Finding the Fourth Proportional to 52,809.90, 79,219 and 15,370.48

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Solution

The fourth proportional to 52,809.90, 79,219 and 15,370.48 is: 23,056.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809.90 : 79,219 = 15,370.48 : x
  2. Step 2: Convert to fraction form
    52,809.90/79,219 = 15,370.48/x
  3. Step 3: Cross multiply
    52,809.90x = 79,219 × 15,370.48
  4. Step 4: Simplify right side
    52,809.90x = 1,217,634,055.12
  5. Step 5: Solve for x
    x = 1,217,634,055.12/52,809.90
  6. Step 6: Final answer
    x = 23,056.93

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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.