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Finding the Fourth Proportional to 43,059.84, 64,590.98 and 11,895.09

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Solution

The fourth proportional to 43,059.84, 64,590.98 and 11,895.09 is: 17,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,059.84 : 64,590.98 = 11,895.09 : x
  2. Step 2: Convert to fraction form
    43,059.84/64,590.98 = 11,895.09/x
  3. Step 3: Cross multiply
    43,059.84x = 64,590.98 × 11,895.09
  4. Step 4: Simplify right side
    43,059.84x = 768,315,460.81
  5. Step 5: Solve for x
    x = 768,315,460.81/43,059.84
  6. Step 6: Final answer
    x = 17,842.97

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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.