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Finding the Fourth Proportional to 14,842.80, 22,231.80 and 14,518.80

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Solution

The fourth proportional to 14,842.80, 22,231.80 and 14,518.80 is: 21,746.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,842.80 : 22,231.80 = 14,518.80 : x
  2. Step 2: Convert to fraction form
    14,842.80/22,231.80 = 14,518.80/x
  3. Step 3: Cross multiply
    14,842.80x = 22,231.80 × 14,518.80
  4. Step 4: Simplify right side
    14,842.80x = 322,779,057.84
  5. Step 5: Solve for x
    x = 322,779,057.84/14,842.80
  6. Step 6: Final answer
    x = 21,746.51

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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.