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Finding the Fourth Proportional to 25,507.13, 38,262.85 and 7,039.13

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Solution

The fourth proportional to 25,507.13, 38,262.85 and 7,039.13 is: 10,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,507.13 : 38,262.85 = 7,039.13 : x
  2. Step 2: Convert to fraction form
    25,507.13/38,262.85 = 7,039.13/x
  3. Step 3: Cross multiply
    25,507.13x = 38,262.85 × 7,039.13
  4. Step 4: Simplify right side
    25,507.13x = 269,336,966.41
  5. Step 5: Solve for x
    x = 269,336,966.41/25,507.13
  6. Step 6: Final answer
    x = 10,559.28

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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.