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Finding the Fourth Proportional to 24,987, 34,482.16 and 13,809

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Solution

The fourth proportional to 24,987, 34,482.16 and 13,809 is: 19,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,987 : 34,482.16 = 13,809 : x
  2. Step 2: Convert to fraction form
    24,987/34,482.16 = 13,809/x
  3. Step 3: Cross multiply
    24,987x = 34,482.16 × 13,809
  4. Step 4: Simplify right side
    24,987x = 476,164,147.44
  5. Step 5: Solve for x
    x = 476,164,147.44/24,987
  6. Step 6: Final answer
    x = 19,056.48

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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.