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Finding the Fourth Proportional to 16,538.40, 24,807.60 and 11,613.60

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Solution

The fourth proportional to 16,538.40, 24,807.60 and 11,613.60 is: 17,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,538.40 : 24,807.60 = 11,613.60 : x
  2. Step 2: Convert to fraction form
    16,538.40/24,807.60 = 11,613.60/x
  3. Step 3: Cross multiply
    16,538.40x = 24,807.60 × 11,613.60
  4. Step 4: Simplify right side
    16,538.40x = 288,105,543.36
  5. Step 5: Solve for x
    x = 288,105,543.36/16,538.40
  6. Step 6: Final answer
    x = 17,420.40

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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.