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Finding the Fourth Proportional to 14,457.71, 19,943.94 and 8,794.19

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Solution

The fourth proportional to 14,457.71, 19,943.94 and 8,794.19 is: 12,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,457.71 : 19,943.94 = 8,794.19 : x
  2. Step 2: Convert to fraction form
    14,457.71/19,943.94 = 8,794.19/x
  3. Step 3: Cross multiply
    14,457.71x = 19,943.94 × 8,794.19
  4. Step 4: Simplify right side
    14,457.71x = 175,390,654.02
  5. Step 5: Solve for x
    x = 175,390,654.02/14,457.71
  6. Step 6: Final answer
    x = 12,131.29

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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.