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Finding the Fourth Proportional to 14,657.67, 21,987.45 and 5,891.45

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Solution

The fourth proportional to 14,657.67, 21,987.45 and 5,891.45 is: 8,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.67 : 21,987.45 = 5,891.45 : x
  2. Step 2: Convert to fraction form
    14,657.67/21,987.45 = 5,891.45/x
  3. Step 3: Cross multiply
    14,657.67x = 21,987.45 × 5,891.45
  4. Step 4: Simplify right side
    14,657.67x = 129,537,852.37
  5. Step 5: Solve for x
    x = 129,537,852.37/14,657.67
  6. Step 6: Final answer
    x = 8,837.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.