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Finding the Fourth Proportional to 14,645.61, 21,965.99 and 4,784.97

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Solution

The fourth proportional to 14,645.61, 21,965.99 and 4,784.97 is: 7,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.61 : 21,965.99 = 4,784.97 : x
  2. Step 2: Convert to fraction form
    14,645.61/21,965.99 = 4,784.97/x
  3. Step 3: Cross multiply
    14,645.61x = 21,965.99 × 4,784.97
  4. Step 4: Simplify right side
    14,645.61x = 105,106,661.62
  5. Step 5: Solve for x
    x = 105,106,661.62/14,645.61
  6. Step 6: Final answer
    x = 7,176.67

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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.