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Finding the Fourth Proportional to 13,482.64, 18,605.53 and 7,514.02

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Solution

The fourth proportional to 13,482.64, 18,605.53 and 7,514.02 is: 10,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.64 : 18,605.53 = 7,514.02 : x
  2. Step 2: Convert to fraction form
    13,482.64/18,605.53 = 7,514.02/x
  3. Step 3: Cross multiply
    13,482.64x = 18,605.53 × 7,514.02
  4. Step 4: Simplify right side
    13,482.64x = 139,802,324.53
  5. Step 5: Solve for x
    x = 139,802,324.53/13,482.64
  6. Step 6: Final answer
    x = 10,369.06

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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.