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Finding the Fourth Proportional to 14,603.54, 21,915.87 and 5,840.90

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Solution

The fourth proportional to 14,603.54, 21,915.87 and 5,840.90 is: 8,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.54 : 21,915.87 = 5,840.90 : x
  2. Step 2: Convert to fraction form
    14,603.54/21,915.87 = 5,840.90/x
  3. Step 3: Cross multiply
    14,603.54x = 21,915.87 × 5,840.90
  4. Step 4: Simplify right side
    14,603.54x = 128,008,405.08
  5. Step 5: Solve for x
    x = 128,008,405.08/14,603.54
  6. Step 6: Final answer
    x = 8,765.57

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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.