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Finding the Fourth Proportional to 14,907.77, 20,562.30 and 12,654.09

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Solution

The fourth proportional to 14,907.77, 20,562.30 and 12,654.09 is: 17,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,907.77 : 20,562.30 = 12,654.09 : x
  2. Step 2: Convert to fraction form
    14,907.77/20,562.30 = 12,654.09/x
  3. Step 3: Cross multiply
    14,907.77x = 20,562.30 × 12,654.09
  4. Step 4: Simplify right side
    14,907.77x = 260,197,194.81
  5. Step 5: Solve for x
    x = 260,197,194.81/14,907.77
  6. Step 6: Final answer
    x = 17,453.80

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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.