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Finding the Fourth Proportional to 14,502.64, 20,013.50 and 13,312.44

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Solution

The fourth proportional to 14,502.64, 20,013.50 and 13,312.44 is: 18,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.64 : 20,013.50 = 13,312.44 : x
  2. Step 2: Convert to fraction form
    14,502.64/20,013.50 = 13,312.44/x
  3. Step 3: Cross multiply
    14,502.64x = 20,013.50 × 13,312.44
  4. Step 4: Simplify right side
    14,502.64x = 266,428,551.22
  5. Step 5: Solve for x
    x = 266,428,551.22/14,502.64
  6. Step 6: Final answer
    x = 18,371.04

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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.