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Finding the Fourth Proportional to 19,010.10, 28,515.15 and 16,101.30

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Solution

The fourth proportional to 19,010.10, 28,515.15 and 16,101.30 is: 24,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.10 : 28,515.15 = 16,101.30 : x
  2. Step 2: Convert to fraction form
    19,010.10/28,515.15 = 16,101.30/x
  3. Step 3: Cross multiply
    19,010.10x = 28,515.15 × 16,101.30
  4. Step 4: Simplify right side
    19,010.10x = 459,130,984.70
  5. Step 5: Solve for x
    x = 459,130,984.70/19,010.10
  6. Step 6: Final answer
    x = 24,151.95

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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.