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Finding the Fourth Proportional to 43,574.87, 65,335.89 and 19,554.77

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Solution

The fourth proportional to 43,574.87, 65,335.89 and 19,554.77 is: 29,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,574.87 : 65,335.89 = 19,554.77 : x
  2. Step 2: Convert to fraction form
    43,574.87/65,335.89 = 19,554.77/x
  3. Step 3: Cross multiply
    43,574.87x = 65,335.89 × 19,554.77
  4. Step 4: Simplify right side
    43,574.87x = 1,277,628,301.70
  5. Step 5: Solve for x
    x = 1,277,628,301.70/43,574.87
  6. Step 6: Final answer
    x = 29,320.30

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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.