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Finding the Fourth Proportional to 32,765, 45,216.66 and 18,618.44

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Solution

The fourth proportional to 32,765, 45,216.66 and 18,618.44 is: 25,693.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,765 : 45,216.66 = 18,618.44 : x
  2. Step 2: Convert to fraction form
    32,765/45,216.66 = 18,618.44/x
  3. Step 3: Cross multiply
    32,765x = 45,216.66 × 18,618.44
  4. Step 4: Simplify right side
    32,765x = 841,863,671.21
  5. Step 5: Solve for x
    x = 841,863,671.21/32,765
  6. Step 6: Final answer
    x = 25,693.99

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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.