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Finding the Fourth Proportional to 19,264.16, 28,895.82 and 8,875.92

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Solution

The fourth proportional to 19,264.16, 28,895.82 and 8,875.92 is: 13,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.16 : 28,895.82 = 8,875.92 : x
  2. Step 2: Convert to fraction form
    19,264.16/28,895.82 = 8,875.92/x
  3. Step 3: Cross multiply
    19,264.16x = 28,895.82 × 8,875.92
  4. Step 4: Simplify right side
    19,264.16x = 256,476,986.65
  5. Step 5: Solve for x
    x = 256,476,986.65/19,264.16
  6. Step 6: Final answer
    x = 13,313.69

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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.