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Finding the Fourth Proportional to 61,941.89, 85,485.51 and 35,085.53

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Solution

The fourth proportional to 61,941.89, 85,485.51 and 35,085.53 is: 48,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,941.89 : 85,485.51 = 35,085.53 : x
  2. Step 2: Convert to fraction form
    61,941.89/85,485.51 = 35,085.53/x
  3. Step 3: Cross multiply
    61,941.89x = 85,485.51 × 35,085.53
  4. Step 4: Simplify right side
    61,941.89x = 2,999,303,998.24
  5. Step 5: Solve for x
    x = 2,999,303,998.24/61,941.89
  6. Step 6: Final answer
    x = 48,421.26

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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.