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Finding the Fourth Proportional to 19,262.88, 28,895.28 and 6,113.92

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Solution

The fourth proportional to 19,262.88, 28,895.28 and 6,113.92 is: 9,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,262.88 : 28,895.28 = 6,113.92 : x
  2. Step 2: Convert to fraction form
    19,262.88/28,895.28 = 6,113.92/x
  3. Step 3: Cross multiply
    19,262.88x = 28,895.28 × 6,113.92
  4. Step 4: Simplify right side
    19,262.88x = 176,663,430.30
  5. Step 5: Solve for x
    x = 176,663,430.30/19,262.88
  6. Step 6: Final answer
    x = 9,171.18

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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.