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Finding the Fourth Proportional to 35,362.80, 48,801.60 and 19,231.20

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Solution

The fourth proportional to 35,362.80, 48,801.60 and 19,231.20 is: 26,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,362.80 : 48,801.60 = 19,231.20 : x
  2. Step 2: Convert to fraction form
    35,362.80/48,801.60 = 19,231.20/x
  3. Step 3: Cross multiply
    35,362.80x = 48,801.60 × 19,231.20
  4. Step 4: Simplify right side
    35,362.80x = 938,513,329.92
  5. Step 5: Solve for x
    x = 938,513,329.92/35,362.80
  6. Step 6: Final answer
    x = 26,539.57

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1.5x scale

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.