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Finding the Fourth Proportional to 25,379.39, 35,023.05 and 14,048.90

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Solution

The fourth proportional to 25,379.39, 35,023.05 and 14,048.90 is: 19,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.39 : 35,023.05 = 14,048.90 : x
  2. Step 2: Convert to fraction form
    25,379.39/35,023.05 = 14,048.90/x
  3. Step 3: Cross multiply
    25,379.39x = 35,023.05 × 14,048.90
  4. Step 4: Simplify right side
    25,379.39x = 492,035,152.03
  5. Step 5: Solve for x
    x = 492,035,152.03/25,379.39
  6. Step 6: Final answer
    x = 19,387.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.