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Finding the Fourth Proportional to 17,085.30, 25,627.95 and 7,869.30

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Solution

The fourth proportional to 17,085.30, 25,627.95 and 7,869.30 is: 11,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,085.30 : 25,627.95 = 7,869.30 : x
  2. Step 2: Convert to fraction form
    17,085.30/25,627.95 = 7,869.30/x
  3. Step 3: Cross multiply
    17,085.30x = 25,627.95 × 7,869.30
  4. Step 4: Simplify right side
    17,085.30x = 201,674,026.94
  5. Step 5: Solve for x
    x = 201,674,026.94/17,085.30
  6. Step 6: Final answer
    x = 11,803.95

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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.