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Finding the Fourth Proportional to 13,444.25, 18,552 and 7,475.55

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Solution

The fourth proportional to 13,444.25, 18,552 and 7,475.55 is: 10,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.25 : 18,552 = 7,475.55 : x
  2. Step 2: Convert to fraction form
    13,444.25/18,552 = 7,475.55/x
  3. Step 3: Cross multiply
    13,444.25x = 18,552 × 7,475.55
  4. Step 4: Simplify right side
    13,444.25x = 138,686,403.60
  5. Step 5: Solve for x
    x = 138,686,403.60/13,444.25
  6. Step 6: Final answer
    x = 10,315.67

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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.