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Finding the Fourth Proportional to 18,461.77, 25,476.91 and 10,503.83

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Solution

The fourth proportional to 18,461.77, 25,476.91 and 10,503.83 is: 14,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.77 : 25,476.91 = 10,503.83 : x
  2. Step 2: Convert to fraction form
    18,461.77/25,476.91 = 10,503.83/x
  3. Step 3: Cross multiply
    18,461.77x = 25,476.91 × 10,503.83
  4. Step 4: Simplify right side
    18,461.77x = 267,604,977.92
  5. Step 5: Solve for x
    x = 267,604,977.92/18,461.77
  6. Step 6: Final answer
    x = 14,495.09

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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.