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Finding the Fourth Proportional to 25,988.38, 38,984.99 and 8,453.50

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Solution

The fourth proportional to 25,988.38, 38,984.99 and 8,453.50 is: 12,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988.38 : 38,984.99 = 8,453.50 : x
  2. Step 2: Convert to fraction form
    25,988.38/38,984.99 = 8,453.50/x
  3. Step 3: Cross multiply
    25,988.38x = 38,984.99 × 8,453.50
  4. Step 4: Simplify right side
    25,988.38x = 329,559,439.17
  5. Step 5: Solve for x
    x = 329,559,439.17/25,988.38
  6. Step 6: Final answer
    x = 12,681.03

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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.