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Finding the Fourth Proportional to 13,476.15, 18,597.87 and 7,507.62

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Solution

The fourth proportional to 13,476.15, 18,597.87 and 7,507.62 is: 10,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.15 : 18,597.87 = 7,507.62 : x
  2. Step 2: Convert to fraction form
    13,476.15/18,597.87 = 7,507.62/x
  3. Step 3: Cross multiply
    13,476.15x = 18,597.87 × 7,507.62
  4. Step 4: Simplify right side
    13,476.15x = 139,625,740.77
  5. Step 5: Solve for x
    x = 139,625,740.77/13,476.15
  6. Step 6: Final answer
    x = 10,360.95

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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.