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Finding the Fourth Proportional to 72,890.04, 109,347.48 and 33,450.51

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Solution

The fourth proportional to 72,890.04, 109,347.48 and 33,450.51 is: 50,181.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.04 : 109,347.48 = 33,450.51 : x
  2. Step 2: Convert to fraction form
    72,890.04/109,347.48 = 33,450.51/x
  3. Step 3: Cross multiply
    72,890.04x = 109,347.48 × 33,450.51
  4. Step 4: Simplify right side
    72,890.04x = 3,657,728,973.21
  5. Step 5: Solve for x
    x = 3,657,728,973.21/72,890.04
  6. Step 6: Final answer
    x = 50,181.46

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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.