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Finding the Fourth Proportional to 18,031.95, 27,047.92 and 7,501.77

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Solution

The fourth proportional to 18,031.95, 27,047.92 and 7,501.77 is: 11,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.95 : 27,047.92 = 7,501.77 : x
  2. Step 2: Convert to fraction form
    18,031.95/27,047.92 = 7,501.77/x
  3. Step 3: Cross multiply
    18,031.95x = 27,047.92 × 7,501.77
  4. Step 4: Simplify right side
    18,031.95x = 202,907,274.82
  5. Step 5: Solve for x
    x = 202,907,274.82/18,031.95
  6. Step 6: Final answer
    x = 11,252.65

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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.