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Finding the Fourth Proportional to 14,603.41, 21,895.53 and 7,212.70

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Solution

The fourth proportional to 14,603.41, 21,895.53 and 7,212.70 is: 10,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.41 : 21,895.53 = 7,212.70 : x
  2. Step 2: Convert to fraction form
    14,603.41/21,895.53 = 7,212.70/x
  3. Step 3: Cross multiply
    14,603.41x = 21,895.53 × 7,212.70
  4. Step 4: Simplify right side
    14,603.41x = 157,925,889.23
  5. Step 5: Solve for x
    x = 157,925,889.23/14,603.41
  6. Step 6: Final answer
    x = 10,814.32

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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.