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Finding the Fourth Proportional to 13,337.20, 17,750.50 and 13,337.20

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Solution

The fourth proportional to 13,337.20, 17,750.50 and 13,337.20 is: 17,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.20 : 17,750.50 = 13,337.20 : x
  2. Step 2: Convert to fraction form
    13,337.20/17,750.50 = 13,337.20/x
  3. Step 3: Cross multiply
    13,337.20x = 17,750.50 × 13,337.20
  4. Step 4: Simplify right side
    13,337.20x = 236,741,968.60
  5. Step 5: Solve for x
    x = 236,741,968.60/13,337.20
  6. Step 6: Final answer
    x = 17,750.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.