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Finding the Fourth Proportional to 13,432.52, 18,536.78 and 7,464.08

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Solution

The fourth proportional to 13,432.52, 18,536.78 and 7,464.08 is: 10,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.52 : 18,536.78 = 7,464.08 : x
  2. Step 2: Convert to fraction form
    13,432.52/18,536.78 = 7,464.08/x
  3. Step 3: Cross multiply
    13,432.52x = 18,536.78 × 7,464.08
  4. Step 4: Simplify right side
    13,432.52x = 138,360,008.86
  5. Step 5: Solve for x
    x = 138,360,008.86/13,432.52
  6. Step 6: Final answer
    x = 10,300.38

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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.