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Finding the Fourth Proportional to 56,505.50, 84,770.40 and 19,066.50

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Solution

The fourth proportional to 56,505.50, 84,770.40 and 19,066.50 is: 28,603.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.50 : 84,770.40 = 19,066.50 : x
  2. Step 2: Convert to fraction form
    56,505.50/84,770.40 = 19,066.50/x
  3. Step 3: Cross multiply
    56,505.50x = 84,770.40 × 19,066.50
  4. Step 4: Simplify right side
    56,505.50x = 1,616,274,831.60
  5. Step 5: Solve for x
    x = 1,616,274,831.60/56,505.50
  6. Step 6: Final answer
    x = 28,603.85

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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.