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Finding the Fourth Proportional to 19,344.64, 26,697.84 and 10,962.64

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Solution

The fourth proportional to 19,344.64, 26,697.84 and 10,962.64 is: 15,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.64 : 26,697.84 = 10,962.64 : x
  2. Step 2: Convert to fraction form
    19,344.64/26,697.84 = 10,962.64/x
  3. Step 3: Cross multiply
    19,344.64x = 26,697.84 × 10,962.64
  4. Step 4: Simplify right side
    19,344.64x = 292,678,808.70
  5. Step 5: Solve for x
    x = 292,678,808.70/19,344.64
  6. Step 6: Final answer
    x = 15,129.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.