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Finding the Fourth Proportional to 25,503.99, 38,261.40 and 7,975.14

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Solution

The fourth proportional to 25,503.99, 38,261.40 and 7,975.14 is: 11,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,503.99 : 38,261.40 = 7,975.14 : x
  2. Step 2: Convert to fraction form
    25,503.99/38,261.40 = 7,975.14/x
  3. Step 3: Cross multiply
    25,503.99x = 38,261.40 × 7,975.14
  4. Step 4: Simplify right side
    25,503.99x = 305,140,021.60
  5. Step 5: Solve for x
    x = 305,140,021.60/25,503.99
  6. Step 6: Final answer
    x = 11,964.40

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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.