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Finding the Fourth Proportional to 19,176.61, 26,468.62 and 11,108.63

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Solution

The fourth proportional to 19,176.61, 26,468.62 and 11,108.63 is: 15,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.61 : 26,468.62 = 11,108.63 : x
  2. Step 2: Convert to fraction form
    19,176.61/26,468.62 = 11,108.63/x
  3. Step 3: Cross multiply
    19,176.61x = 26,468.62 × 11,108.63
  4. Step 4: Simplify right side
    19,176.61x = 294,030,169.86
  5. Step 5: Solve for x
    x = 294,030,169.86/19,176.61
  6. Step 6: Final answer
    x = 15,332.75

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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.