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Finding the Fourth Proportional to 61,474.08, 92,210.58 and 19,921.08

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Solution

The fourth proportional to 61,474.08, 92,210.58 and 19,921.08 is: 29,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,474.08 : 92,210.58 = 19,921.08 : x
  2. Step 2: Convert to fraction form
    61,474.08/92,210.58 = 19,921.08/x
  3. Step 3: Cross multiply
    61,474.08x = 92,210.58 × 19,921.08
  4. Step 4: Simplify right side
    61,474.08x = 1,836,934,341.03
  5. Step 5: Solve for x
    x = 1,836,934,341.03/61,474.08
  6. Step 6: Final answer
    x = 29,881.45

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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.