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Finding the Fourth Proportional to 61,947.32, 92,920.80 and 17,574.08

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Solution

The fourth proportional to 61,947.32, 92,920.80 and 17,574.08 is: 26,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.32 : 92,920.80 = 17,574.08 : x
  2. Step 2: Convert to fraction form
    61,947.32/92,920.80 = 17,574.08/x
  3. Step 3: Cross multiply
    61,947.32x = 92,920.80 × 17,574.08
  4. Step 4: Simplify right side
    61,947.32x = 1,632,997,572.86
  5. Step 5: Solve for x
    x = 1,632,997,572.86/61,947.32
  6. Step 6: Final answer
    x = 26,361.07

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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.