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Finding the Fourth Proportional to 19,314.54, 28,958.13 and 9,950.54

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Solution

The fourth proportional to 19,314.54, 28,958.13 and 9,950.54 is: 14,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.54 : 28,958.13 = 9,950.54 : x
  2. Step 2: Convert to fraction form
    19,314.54/28,958.13 = 9,950.54/x
  3. Step 3: Cross multiply
    19,314.54x = 28,958.13 × 9,950.54
  4. Step 4: Simplify right side
    19,314.54x = 288,148,886.10
  5. Step 5: Solve for x
    x = 288,148,886.10/19,314.54
  6. Step 6: Final answer
    x = 14,918.75

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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.