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Finding the Fourth Proportional to 25,488.99, 35,164.98 and 18,790.52

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Solution

The fourth proportional to 25,488.99, 35,164.98 and 18,790.52 is: 25,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488.99 : 35,164.98 = 18,790.52 : x
  2. Step 2: Convert to fraction form
    25,488.99/35,164.98 = 18,790.52/x
  3. Step 3: Cross multiply
    25,488.99x = 35,164.98 × 18,790.52
  4. Step 4: Simplify right side
    25,488.99x = 660,768,084.16
  5. Step 5: Solve for x
    x = 660,768,084.16/25,488.99
  6. Step 6: Final answer
    x = 25,923.67

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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.