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Finding the Fourth Proportional to 19,269.40, 28,904.10 and 10,034.20

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Solution

The fourth proportional to 19,269.40, 28,904.10 and 10,034.20 is: 15,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,269.40 : 28,904.10 = 10,034.20 : x
  2. Step 2: Convert to fraction form
    19,269.40/28,904.10 = 10,034.20/x
  3. Step 3: Cross multiply
    19,269.40x = 28,904.10 × 10,034.20
  4. Step 4: Simplify right side
    19,269.40x = 290,029,520.22
  5. Step 5: Solve for x
    x = 290,029,520.22/19,269.40
  6. Step 6: Final answer
    x = 15,051.30

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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.