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Finding the Fourth Proportional to 10,702.53, 14,858.44 and 10,381.77

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Solution

The fourth proportional to 10,702.53, 14,858.44 and 10,381.77 is: 14,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,702.53 : 14,858.44 = 10,381.77 : x
  2. Step 2: Convert to fraction form
    10,702.53/14,858.44 = 10,381.77/x
  3. Step 3: Cross multiply
    10,702.53x = 14,858.44 × 10,381.77
  4. Step 4: Simplify right side
    10,702.53x = 154,256,880.68
  5. Step 5: Solve for x
    x = 154,256,880.68/10,702.53
  6. Step 6: Final answer
    x = 14,413.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.