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Finding the Fourth Proportional to 18,526.76, 27,790.15 and 4,675.76

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Solution

The fourth proportional to 18,526.76, 27,790.15 and 4,675.76 is: 7,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.76 : 27,790.15 = 4,675.76 : x
  2. Step 2: Convert to fraction form
    18,526.76/27,790.15 = 4,675.76/x
  3. Step 3: Cross multiply
    18,526.76x = 27,790.15 × 4,675.76
  4. Step 4: Simplify right side
    18,526.76x = 129,940,071.76
  5. Step 5: Solve for x
    x = 129,940,071.76/18,526.76
  6. Step 6: Final answer
    x = 7,013.64

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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.