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Finding the Fourth Proportional to 16,516.40, 24,774.60 and 16,419.20

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Solution

The fourth proportional to 16,516.40, 24,774.60 and 16,419.20 is: 24,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,516.40 : 24,774.60 = 16,419.20 : x
  2. Step 2: Convert to fraction form
    16,516.40/24,774.60 = 16,419.20/x
  3. Step 3: Cross multiply
    16,516.40x = 24,774.60 × 16,419.20
  4. Step 4: Simplify right side
    16,516.40x = 406,779,112.32
  5. Step 5: Solve for x
    x = 406,779,112.32/16,516.40
  6. Step 6: Final answer
    x = 24,628.80

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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.