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Finding the Fourth Proportional to 26,915.49, 37,145.79 and 14,981.49

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Solution

The fourth proportional to 26,915.49, 37,145.79 and 14,981.49 is: 20,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.49 : 37,145.79 = 14,981.49 : x
  2. Step 2: Convert to fraction form
    26,915.49/37,145.79 = 14,981.49/x
  3. Step 3: Cross multiply
    26,915.49x = 37,145.79 × 14,981.49
  4. Step 4: Simplify right side
    26,915.49x = 556,499,281.43
  5. Step 5: Solve for x
    x = 556,499,281.43/26,915.49
  6. Step 6: Final answer
    x = 20,675.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.