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Finding the Fourth Proportional to 12,804.95, 17,672.19 and 7,504.22

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Solution

The fourth proportional to 12,804.95, 17,672.19 and 7,504.22 is: 10,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.95 : 17,672.19 = 7,504.22 : x
  2. Step 2: Convert to fraction form
    12,804.95/17,672.19 = 7,504.22/x
  3. Step 3: Cross multiply
    12,804.95x = 17,672.19 × 7,504.22
  4. Step 4: Simplify right side
    12,804.95x = 132,616,001.64
  5. Step 5: Solve for x
    x = 132,616,001.64/12,804.95
  6. Step 6: Final answer
    x = 10,356.62

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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.