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Finding the Fourth Proportional to 25,363.90, 37,972.95 and 15,522.40

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Solution

The fourth proportional to 25,363.90, 37,972.95 and 15,522.40 is: 23,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,363.90 : 37,972.95 = 15,522.40 : x
  2. Step 2: Convert to fraction form
    25,363.90/37,972.95 = 15,522.40/x
  3. Step 3: Cross multiply
    25,363.90x = 37,972.95 × 15,522.40
  4. Step 4: Simplify right side
    25,363.90x = 589,431,319.08
  5. Step 5: Solve for x
    x = 589,431,319.08/25,363.90
  6. Step 6: Final answer
    x = 23,238.99

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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.