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Finding the Fourth Proportional to 61,833.72, 85,335.72 and 34,981.02

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Solution

The fourth proportional to 61,833.72, 85,335.72 and 34,981.02 is: 48,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,833.72 : 85,335.72 = 34,981.02 : x
  2. Step 2: Convert to fraction form
    61,833.72/85,335.72 = 34,981.02/x
  3. Step 3: Cross multiply
    61,833.72x = 85,335.72 × 34,981.02
  4. Step 4: Simplify right side
    61,833.72x = 2,985,130,528.03
  5. Step 5: Solve for x
    x = 2,985,130,528.03/61,833.72
  6. Step 6: Final answer
    x = 48,276.74

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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.