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Finding the Fourth Proportional to 28,597.91, 42,882.23 and 11,953.40

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Solution

The fourth proportional to 28,597.91, 42,882.23 and 11,953.40 is: 17,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.91 : 42,882.23 = 11,953.40 : x
  2. Step 2: Convert to fraction form
    28,597.91/42,882.23 = 11,953.40/x
  3. Step 3: Cross multiply
    28,597.91x = 42,882.23 × 11,953.40
  4. Step 4: Simplify right side
    28,597.91x = 512,588,448.08
  5. Step 5: Solve for x
    x = 512,588,448.08/28,597.91
  6. Step 6: Final answer
    x = 17,923.98

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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.