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Finding the Fourth Proportional to 19,506.51, 29,276.17 and 18,276.32

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Solution

The fourth proportional to 19,506.51, 29,276.17 and 18,276.32 is: 27,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,506.51 : 29,276.17 = 18,276.32 : x
  2. Step 2: Convert to fraction form
    19,506.51/29,276.17 = 18,276.32/x
  3. Step 3: Cross multiply
    19,506.51x = 29,276.17 × 18,276.32
  4. Step 4: Simplify right side
    19,506.51x = 535,060,651.29
  5. Step 5: Solve for x
    x = 535,060,651.29/19,506.51
  6. Step 6: Final answer
    x = 27,429.85

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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.