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Finding the Fourth Proportional to 60,856, 91,284 and 19,303

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Solution

The fourth proportional to 60,856, 91,284 and 19,303 is: 28,954.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,856 : 91,284 = 19,303 : x
  2. Step 2: Convert to fraction form
    60,856/91,284 = 19,303/x
  3. Step 3: Cross multiply
    60,856x = 91,284 × 19,303
  4. Step 4: Simplify right side
    60,856x = 1,762,055,052
  5. Step 5: Solve for x
    x = 1,762,055,052/60,856
  6. Step 6: Final answer
    x = 28,954.50

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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.