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Finding the Fourth Proportional to 32,389.80, 44,696.88 and 18,242.16

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Solution

The fourth proportional to 32,389.80, 44,696.88 and 18,242.16 is: 25,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,389.80 : 44,696.88 = 18,242.16 : x
  2. Step 2: Convert to fraction form
    32,389.80/44,696.88 = 18,242.16/x
  3. Step 3: Cross multiply
    32,389.80x = 44,696.88 × 18,242.16
  4. Step 4: Simplify right side
    32,389.80x = 815,367,636.46
  5. Step 5: Solve for x
    x = 815,367,636.46/32,389.80
  6. Step 6: Final answer
    x = 25,173.59

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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.