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Finding the Fourth Proportional to 14,525.58, 20,038.64 and 8,554.38

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Solution

The fourth proportional to 14,525.58, 20,038.64 and 8,554.38 is: 11,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,525.58 : 20,038.64 = 8,554.38 : x
  2. Step 2: Convert to fraction form
    14,525.58/20,038.64 = 8,554.38/x
  3. Step 3: Cross multiply
    14,525.58x = 20,038.64 × 8,554.38
  4. Step 4: Simplify right side
    14,525.58x = 171,418,141.24
  5. Step 5: Solve for x
    x = 171,418,141.24/14,525.58
  6. Step 6: Final answer
    x = 11,801.12

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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.