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Finding the Fourth Proportional to 19,243.02, 28,868.04 and 8,854.50

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Solution

The fourth proportional to 19,243.02, 28,868.04 and 8,854.50 is: 13,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.02 : 28,868.04 = 8,854.50 : x
  2. Step 2: Convert to fraction form
    19,243.02/28,868.04 = 8,854.50/x
  3. Step 3: Cross multiply
    19,243.02x = 28,868.04 × 8,854.50
  4. Step 4: Simplify right side
    19,243.02x = 255,612,060.18
  5. Step 5: Solve for x
    x = 255,612,060.18/19,243.02
  6. Step 6: Final answer
    x = 13,283.37

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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.