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Finding the Fourth Proportional to 13,496.95, 18,625.74 and 7,528.61

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Solution

The fourth proportional to 13,496.95, 18,625.74 and 7,528.61 is: 10,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.95 : 18,625.74 = 7,528.61 : x
  2. Step 2: Convert to fraction form
    13,496.95/18,625.74 = 7,528.61/x
  3. Step 3: Cross multiply
    13,496.95x = 18,625.74 × 7,528.61
  4. Step 4: Simplify right side
    13,496.95x = 140,225,932.42
  5. Step 5: Solve for x
    x = 140,225,932.42/13,496.95
  6. Step 6: Final answer
    x = 10,389.45

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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.