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Finding the Fourth Proportional to 60,979.66, 91,467.71 and 16,606.78

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Solution

The fourth proportional to 60,979.66, 91,467.71 and 16,606.78 is: 24,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,979.66 : 91,467.71 = 16,606.78 : x
  2. Step 2: Convert to fraction form
    60,979.66/91,467.71 = 16,606.78/x
  3. Step 3: Cross multiply
    60,979.66x = 91,467.71 × 16,606.78
  4. Step 4: Simplify right side
    60,979.66x = 1,518,984,137.07
  5. Step 5: Solve for x
    x = 1,518,984,137.07/60,979.66
  6. Step 6: Final answer
    x = 24,909.69

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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.