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Finding the Fourth Proportional to 19,234.50, 28,863.90 and 14,860.50

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Solution

The fourth proportional to 19,234.50, 28,863.90 and 14,860.50 is: 22,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.50 : 28,863.90 = 14,860.50 : x
  2. Step 2: Convert to fraction form
    19,234.50/28,863.90 = 14,860.50/x
  3. Step 3: Cross multiply
    19,234.50x = 28,863.90 × 14,860.50
  4. Step 4: Simplify right side
    19,234.50x = 428,931,985.95
  5. Step 5: Solve for x
    x = 428,931,985.95/19,234.50
  6. Step 6: Final answer
    x = 22,300.14

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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.