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Finding the Fourth Proportional to 30,174.80, 45,305.40 and 17,052.80

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Solution

The fourth proportional to 30,174.80, 45,305.40 and 17,052.80 is: 25,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,174.80 : 45,305.40 = 17,052.80 : x
  2. Step 2: Convert to fraction form
    30,174.80/45,305.40 = 17,052.80/x
  3. Step 3: Cross multiply
    30,174.80x = 45,305.40 × 17,052.80
  4. Step 4: Simplify right side
    30,174.80x = 772,583,925.12
  5. Step 5: Solve for x
    x = 772,583,925.12/30,174.80
  6. Step 6: Final answer
    x = 25,603.61

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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.