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Finding the Fourth Proportional to 35,487.77, 53,231.67 and 19,916.33

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Solution

The fourth proportional to 35,487.77, 53,231.67 and 19,916.33 is: 29,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.77 : 53,231.67 = 19,916.33 : x
  2. Step 2: Convert to fraction form
    35,487.77/53,231.67 = 19,916.33/x
  3. Step 3: Cross multiply
    35,487.77x = 53,231.67 × 19,916.33
  4. Step 4: Simplify right side
    35,487.77x = 1,060,179,240.01
  5. Step 5: Solve for x
    x = 1,060,179,240.01/35,487.77
  6. Step 6: Final answer
    x = 29,874.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.