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Finding the Fourth Proportional to 16,308.40, 24,464.40 and 5,213.20

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Solution

The fourth proportional to 16,308.40, 24,464.40 and 5,213.20 is: 7,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,308.40 : 24,464.40 = 5,213.20 : x
  2. Step 2: Convert to fraction form
    16,308.40/24,464.40 = 5,213.20/x
  3. Step 3: Cross multiply
    16,308.40x = 24,464.40 × 5,213.20
  4. Step 4: Simplify right side
    16,308.40x = 127,537,810.08
  5. Step 5: Solve for x
    x = 127,537,810.08/16,308.40
  6. Step 6: Final answer
    x = 7,820.38

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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.