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Finding the Fourth Proportional to 25,803.56, 38,702.70 and 7,085.48

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Solution

The fourth proportional to 25,803.56, 38,702.70 and 7,085.48 is: 10,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.56 : 38,702.70 = 7,085.48 : x
  2. Step 2: Convert to fraction form
    25,803.56/38,702.70 = 7,085.48/x
  3. Step 3: Cross multiply
    25,803.56x = 38,702.70 × 7,085.48
  4. Step 4: Simplify right side
    25,803.56x = 274,227,013.28
  5. Step 5: Solve for x
    x = 274,227,013.28/25,803.56
  6. Step 6: Final answer
    x = 10,627.49

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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.