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Finding the Fourth Proportional to 13,482.74, 18,605.93 and 7,514.28

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Solution

The fourth proportional to 13,482.74, 18,605.93 and 7,514.28 is: 10,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.74 : 18,605.93 = 7,514.28 : x
  2. Step 2: Convert to fraction form
    13,482.74/18,605.93 = 7,514.28/x
  3. Step 3: Cross multiply
    13,482.74x = 18,605.93 × 7,514.28
  4. Step 4: Simplify right side
    13,482.74x = 139,810,167.68
  5. Step 5: Solve for x
    x = 139,810,167.68/13,482.74
  6. Step 6: Final answer
    x = 10,369.57

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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.