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Finding the Fourth Proportional to 19,203.46, 28,804.23 and 7,518.82

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Solution

The fourth proportional to 19,203.46, 28,804.23 and 7,518.82 is: 11,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.46 : 28,804.23 = 7,518.82 : x
  2. Step 2: Convert to fraction form
    19,203.46/28,804.23 = 7,518.82/x
  3. Step 3: Cross multiply
    19,203.46x = 28,804.23 × 7,518.82
  4. Step 4: Simplify right side
    19,203.46x = 216,573,820.61
  5. Step 5: Solve for x
    x = 216,573,820.61/19,203.46
  6. Step 6: Final answer
    x = 11,277.85

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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.