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Finding the Fourth Proportional to 35,356.48, 48,779.73 and 21,922.90

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Solution

The fourth proportional to 35,356.48, 48,779.73 and 21,922.90 is: 30,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,356.48 : 48,779.73 = 21,922.90 : x
  2. Step 2: Convert to fraction form
    35,356.48/48,779.73 = 21,922.90/x
  3. Step 3: Cross multiply
    35,356.48x = 48,779.73 × 21,922.90
  4. Step 4: Simplify right side
    35,356.48x = 1,069,393,142.82
  5. Step 5: Solve for x
    x = 1,069,393,142.82/35,356.48
  6. Step 6: Final answer
    x = 30,246.03

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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.