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Finding the Fourth Proportional to 18,503.74, 25,529.02 and 10,436.39

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Solution

The fourth proportional to 18,503.74, 25,529.02 and 10,436.39 is: 14,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.74 : 25,529.02 = 10,436.39 : x
  2. Step 2: Convert to fraction form
    18,503.74/25,529.02 = 10,436.39/x
  3. Step 3: Cross multiply
    18,503.74x = 25,529.02 × 10,436.39
  4. Step 4: Simplify right side
    18,503.74x = 266,430,809.04
  5. Step 5: Solve for x
    x = 266,430,809.04/18,503.74
  6. Step 6: Final answer
    x = 14,398.75

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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.