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Finding the Fourth Proportional to 18,862.88, 28,253.95 and 9,950.04

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Solution

The fourth proportional to 18,862.88, 28,253.95 and 9,950.04 is: 14,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.88 : 28,253.95 = 9,950.04 : x
  2. Step 2: Convert to fraction form
    18,862.88/28,253.95 = 9,950.04/x
  3. Step 3: Cross multiply
    18,862.88x = 28,253.95 × 9,950.04
  4. Step 4: Simplify right side
    18,862.88x = 281,127,907.78
  5. Step 5: Solve for x
    x = 281,127,907.78/18,862.88
  6. Step 6: Final answer
    x = 14,903.77

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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.