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Finding the Fourth Proportional to 11,607.63, 16,022.19 and 7,415.88

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Solution

The fourth proportional to 11,607.63, 16,022.19 and 7,415.88 is: 10,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.63 : 16,022.19 = 7,415.88 : x
  2. Step 2: Convert to fraction form
    11,607.63/16,022.19 = 7,415.88/x
  3. Step 3: Cross multiply
    11,607.63x = 16,022.19 × 7,415.88
  4. Step 4: Simplify right side
    11,607.63x = 118,818,638.38
  5. Step 5: Solve for x
    x = 118,818,638.38/11,607.63
  6. Step 6: Final answer
    x = 10,236.25

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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.