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Finding the Fourth Proportional to 13,352.52, 18,428.08 and 7,763.52

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Solution

The fourth proportional to 13,352.52, 18,428.08 and 7,763.52 is: 10,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.52 : 18,428.08 = 7,763.52 : x
  2. Step 2: Convert to fraction form
    13,352.52/18,428.08 = 7,763.52/x
  3. Step 3: Cross multiply
    13,352.52x = 18,428.08 × 7,763.52
  4. Step 4: Simplify right side
    13,352.52x = 143,066,767.64
  5. Step 5: Solve for x
    x = 143,066,767.64/13,352.52
  6. Step 6: Final answer
    x = 10,714.59

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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.