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Finding the Fourth Proportional to 21,980.58, 32,970.87 and 14,599.46

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Solution

The fourth proportional to 21,980.58, 32,970.87 and 14,599.46 is: 21,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.58 : 32,970.87 = 14,599.46 : x
  2. Step 2: Convert to fraction form
    21,980.58/32,970.87 = 14,599.46/x
  3. Step 3: Cross multiply
    21,980.58x = 32,970.87 × 14,599.46
  4. Step 4: Simplify right side
    21,980.58x = 481,356,732.88
  5. Step 5: Solve for x
    x = 481,356,732.88/21,980.58
  6. Step 6: Final answer
    x = 21,899.18

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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.