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Finding the Fourth Proportional to 61,871.16, 85,368.96 and 35,005.08

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Solution

The fourth proportional to 61,871.16, 85,368.96 and 35,005.08 is: 48,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.16 : 85,368.96 = 35,005.08 : x
  2. Step 2: Convert to fraction form
    61,871.16/85,368.96 = 35,005.08/x
  3. Step 3: Cross multiply
    61,871.16x = 85,368.96 × 35,005.08
  4. Step 4: Simplify right side
    61,871.16x = 2,988,347,274.32
  5. Step 5: Solve for x
    x = 2,988,347,274.32/61,871.16
  6. Step 6: Final answer
    x = 48,299.52

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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.