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Finding the Fourth Proportional to 61,948.51, 85,486.20 and 35,090.48

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Solution

The fourth proportional to 61,948.51, 85,486.20 and 35,090.48 is: 48,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,948.51 : 85,486.20 = 35,090.48 : x
  2. Step 2: Convert to fraction form
    61,948.51/85,486.20 = 35,090.48/x
  3. Step 3: Cross multiply
    61,948.51x = 85,486.20 × 35,090.48
  4. Step 4: Simplify right side
    61,948.51x = 2,999,752,070.89
  5. Step 5: Solve for x
    x = 2,999,752,070.89/61,948.51
  6. Step 6: Final answer
    x = 48,423.31

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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.