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Finding the Fourth Proportional to 14,361.06, 21,502.44 and 7,420.98

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Solution

The fourth proportional to 14,361.06, 21,502.44 and 7,420.98 is: 11,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361.06 : 21,502.44 = 7,420.98 : x
  2. Step 2: Convert to fraction form
    14,361.06/21,502.44 = 7,420.98/x
  3. Step 3: Cross multiply
    14,361.06x = 21,502.44 × 7,420.98
  4. Step 4: Simplify right side
    14,361.06x = 159,569,177.19
  5. Step 5: Solve for x
    x = 159,569,177.19/14,361.06
  6. Step 6: Final answer
    x = 11,111.24

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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.