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Finding the Fourth Proportional to 14,440.55, 21,643.74 and 7,027.99

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Solution

The fourth proportional to 14,440.55, 21,643.74 and 7,027.99 is: 10,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,440.55 : 21,643.74 = 7,027.99 : x
  2. Step 2: Convert to fraction form
    14,440.55/21,643.74 = 7,027.99/x
  3. Step 3: Cross multiply
    14,440.55x = 21,643.74 × 7,027.99
  4. Step 4: Simplify right side
    14,440.55x = 152,111,934.17
  5. Step 5: Solve for x
    x = 152,111,934.17/14,440.55
  6. Step 6: Final answer
    x = 10,533.67

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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.