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Finding the Fourth Proportional to 14,457.94, 19,950.08 and 8,085

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Solution

The fourth proportional to 14,457.94, 19,950.08 and 8,085 is: 11,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,457.94 : 19,950.08 = 8,085 : x
  2. Step 2: Convert to fraction form
    14,457.94/19,950.08 = 8,085/x
  3. Step 3: Cross multiply
    14,457.94x = 19,950.08 × 8,085
  4. Step 4: Simplify right side
    14,457.94x = 161,296,396.80
  5. Step 5: Solve for x
    x = 161,296,396.80/14,457.94
  6. Step 6: Final answer
    x = 11,156.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.