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Finding the Fourth Proportional to 13,026.15, 17,977.95 and 7,362.63

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Solution

The fourth proportional to 13,026.15, 17,977.95 and 7,362.63 is: 10,161.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.15 : 17,977.95 = 7,362.63 : x
  2. Step 2: Convert to fraction form
    13,026.15/17,977.95 = 7,362.63/x
  3. Step 3: Cross multiply
    13,026.15x = 17,977.95 × 7,362.63
  4. Step 4: Simplify right side
    13,026.15x = 132,364,994.01
  5. Step 5: Solve for x
    x = 132,364,994.01/13,026.15
  6. Step 6: Final answer
    x = 10,161.48

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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.