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Finding the Fourth Proportional to 19,804.88, 29,584.18 and 15,916.88

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Solution

The fourth proportional to 19,804.88, 29,584.18 and 15,916.88 is: 23,776.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.88 : 29,584.18 = 15,916.88 : x
  2. Step 2: Convert to fraction form
    19,804.88/29,584.18 = 15,916.88/x
  3. Step 3: Cross multiply
    19,804.88x = 29,584.18 × 15,916.88
  4. Step 4: Simplify right side
    19,804.88x = 470,887,842.96
  5. Step 5: Solve for x
    x = 470,887,842.96/19,804.88
  6. Step 6: Final answer
    x = 23,776.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.