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Finding the Fourth Proportional to 61,892.51, 85,407.21 and 35,038.04

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Solution

The fourth proportional to 61,892.51, 85,407.21 and 35,038.04 is: 48,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,892.51 : 85,407.21 = 35,038.04 : x
  2. Step 2: Convert to fraction form
    61,892.51/85,407.21 = 35,038.04/x
  3. Step 3: Cross multiply
    61,892.51x = 85,407.21 × 35,038.04
  4. Step 4: Simplify right side
    61,892.51x = 2,992,500,813.23
  5. Step 5: Solve for x
    x = 2,992,500,813.23/61,892.51
  6. Step 6: Final answer
    x = 48,349.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.