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Finding the Fourth Proportional to 39,663.96, 59,486.73 and 11,578.08

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Solution

The fourth proportional to 39,663.96, 59,486.73 and 11,578.08 is: 17,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,663.96 : 59,486.73 = 11,578.08 : x
  2. Step 2: Convert to fraction form
    39,663.96/59,486.73 = 11,578.08/x
  3. Step 3: Cross multiply
    39,663.96x = 59,486.73 × 11,578.08
  4. Step 4: Simplify right side
    39,663.96x = 688,742,118.88
  5. Step 5: Solve for x
    x = 688,742,118.88/39,663.96
  6. Step 6: Final answer
    x = 17,364.43

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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.