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Finding the Fourth Proportional to 25,383.91, 38,075.86 and 6,915.91

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Solution

The fourth proportional to 25,383.91, 38,075.86 and 6,915.91 is: 10,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,383.91 : 38,075.86 = 6,915.91 : x
  2. Step 2: Convert to fraction form
    25,383.91/38,075.86 = 6,915.91/x
  3. Step 3: Cross multiply
    25,383.91x = 38,075.86 × 6,915.91
  4. Step 4: Simplify right side
    25,383.91x = 263,329,220.93
  5. Step 5: Solve for x
    x = 263,329,220.93/25,383.91
  6. Step 6: Final answer
    x = 10,373.86

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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.