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Finding the Fourth Proportional to 61,947, 92,906.60 and 17,572.77

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Solution

The fourth proportional to 61,947, 92,906.60 and 17,572.77 is: 26,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947 : 92,906.60 = 17,572.77 : x
  2. Step 2: Convert to fraction form
    61,947/92,906.60 = 17,572.77/x
  3. Step 3: Cross multiply
    61,947x = 92,906.60 × 17,572.77
  4. Step 4: Simplify right side
    61,947x = 1,632,626,225.42
  5. Step 5: Solve for x
    x = 1,632,626,225.42/61,947
  6. Step 6: Final answer
    x = 26,355.21

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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.