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Finding the Fourth Proportional to 14,599.80, 21,867.30 and 12,007.80

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Solution

The fourth proportional to 14,599.80, 21,867.30 and 12,007.80 is: 17,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.80 : 21,867.30 = 12,007.80 : x
  2. Step 2: Convert to fraction form
    14,599.80/21,867.30 = 12,007.80/x
  3. Step 3: Cross multiply
    14,599.80x = 21,867.30 × 12,007.80
  4. Step 4: Simplify right side
    14,599.80x = 262,578,164.94
  5. Step 5: Solve for x
    x = 262,578,164.94/14,599.80
  6. Step 6: Final answer
    x = 17,985.05

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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.