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Finding the Fourth Proportional to 24,365.40, 33,639.90 and 19,899.87

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Solution

The fourth proportional to 24,365.40, 33,639.90 and 19,899.87 is: 27,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,365.40 : 33,639.90 = 19,899.87 : x
  2. Step 2: Convert to fraction form
    24,365.40/33,639.90 = 19,899.87/x
  3. Step 3: Cross multiply
    24,365.40x = 33,639.90 × 19,899.87
  4. Step 4: Simplify right side
    24,365.40x = 669,429,636.81
  5. Step 5: Solve for x
    x = 669,429,636.81/24,365.40
  6. Step 6: Final answer
    x = 27,474.60

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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.