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Finding the Fourth Proportional to 36,030.40, 54,029.40 and 13,836.40

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Solution

The fourth proportional to 36,030.40, 54,029.40 and 13,836.40 is: 20,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,030.40 : 54,029.40 = 13,836.40 : x
  2. Step 2: Convert to fraction form
    36,030.40/54,029.40 = 13,836.40/x
  3. Step 3: Cross multiply
    36,030.40x = 54,029.40 × 13,836.40
  4. Step 4: Simplify right side
    36,030.40x = 747,572,390.16
  5. Step 5: Solve for x
    x = 747,572,390.16/36,030.40
  6. Step 6: Final answer
    x = 20,748.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.