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Finding the Fourth Proportional to 18,882.42, 28,332.54 and 9,024.72

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Solution

The fourth proportional to 18,882.42, 28,332.54 and 9,024.72 is: 13,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.42 : 28,332.54 = 9,024.72 : x
  2. Step 2: Convert to fraction form
    18,882.42/28,332.54 = 9,024.72/x
  3. Step 3: Cross multiply
    18,882.42x = 28,332.54 × 9,024.72
  4. Step 4: Simplify right side
    18,882.42x = 255,693,240.39
  5. Step 5: Solve for x
    x = 255,693,240.39/18,882.42
  6. Step 6: Final answer
    x = 13,541.34

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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.