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Finding the Fourth Proportional to 25,615, 35,355.18 and 14,443.48

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Solution

The fourth proportional to 25,615, 35,355.18 and 14,443.48 is: 19,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615 : 35,355.18 = 14,443.48 : x
  2. Step 2: Convert to fraction form
    25,615/35,355.18 = 14,443.48/x
  3. Step 3: Cross multiply
    25,615x = 35,355.18 × 14,443.48
  4. Step 4: Simplify right side
    25,615x = 510,651,835.23
  5. Step 5: Solve for x
    x = 510,651,835.23/25,615
  6. Step 6: Final answer
    x = 19,935.66

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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.