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Finding the Fourth Proportional to 19,041.96, 28,555.08 and 7,193.72

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Solution

The fourth proportional to 19,041.96, 28,555.08 and 7,193.72 is: 10,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,041.96 : 28,555.08 = 7,193.72 : x
  2. Step 2: Convert to fraction form
    19,041.96/28,555.08 = 7,193.72/x
  3. Step 3: Cross multiply
    19,041.96x = 28,555.08 × 7,193.72
  4. Step 4: Simplify right side
    19,041.96x = 205,417,250.10
  5. Step 5: Solve for x
    x = 205,417,250.10/19,041.96
  6. Step 6: Final answer
    x = 10,787.61

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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.