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Finding the Fourth Proportional to 13,457.63, 18,571.53 and 7,569.63

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Solution

The fourth proportional to 13,457.63, 18,571.53 and 7,569.63 is: 10,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.63 : 18,571.53 = 7,569.63 : x
  2. Step 2: Convert to fraction form
    13,457.63/18,571.53 = 7,569.63/x
  3. Step 3: Cross multiply
    13,457.63x = 18,571.53 × 7,569.63
  4. Step 4: Simplify right side
    13,457.63x = 140,579,610.63
  5. Step 5: Solve for x
    x = 140,579,610.63/13,457.63
  6. Step 6: Final answer
    x = 10,446.09

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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.