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Finding the Fourth Proportional to 30,455.66, 42,027.66 and 17,026.27

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Solution

The fourth proportional to 30,455.66, 42,027.66 and 17,026.27 is: 23,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.66 : 42,027.66 = 17,026.27 : x
  2. Step 2: Convert to fraction form
    30,455.66/42,027.66 = 17,026.27/x
  3. Step 3: Cross multiply
    30,455.66x = 42,027.66 × 17,026.27
  4. Step 4: Simplify right side
    30,455.66x = 715,574,181.56
  5. Step 5: Solve for x
    x = 715,574,181.56/30,455.66
  6. Step 6: Final answer
    x = 23,495.60

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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.