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Finding the Fourth Proportional to 18,058.68, 27,075.06 and 7,664.76

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Solution

The fourth proportional to 18,058.68, 27,075.06 and 7,664.76 is: 11,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.68 : 27,075.06 = 7,664.76 : x
  2. Step 2: Convert to fraction form
    18,058.68/27,075.06 = 7,664.76/x
  3. Step 3: Cross multiply
    18,058.68x = 27,075.06 × 7,664.76
  4. Step 4: Simplify right side
    18,058.68x = 207,523,836.89
  5. Step 5: Solve for x
    x = 207,523,836.89/18,058.68
  6. Step 6: Final answer
    x = 11,491.64

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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.