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Finding the Fourth Proportional to 30,477.60, 42,060.96 and 17,050.44

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Solution

The fourth proportional to 30,477.60, 42,060.96 and 17,050.44 is: 23,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.60 : 42,060.96 = 17,050.44 : x
  2. Step 2: Convert to fraction form
    30,477.60/42,060.96 = 17,050.44/x
  3. Step 3: Cross multiply
    30,477.60x = 42,060.96 × 17,050.44
  4. Step 4: Simplify right side
    30,477.60x = 717,157,874.82
  5. Step 5: Solve for x
    x = 717,157,874.82/30,477.60
  6. Step 6: Final answer
    x = 23,530.65

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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.