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Finding the Fourth Proportional to 17,538.60, 26,307.90 and 16,847.40

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Solution

The fourth proportional to 17,538.60, 26,307.90 and 16,847.40 is: 25,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,538.60 : 26,307.90 = 16,847.40 : x
  2. Step 2: Convert to fraction form
    17,538.60/26,307.90 = 16,847.40/x
  3. Step 3: Cross multiply
    17,538.60x = 26,307.90 × 16,847.40
  4. Step 4: Simplify right side
    17,538.60x = 443,219,714.46
  5. Step 5: Solve for x
    x = 443,219,714.46/17,538.60
  6. Step 6: Final answer
    x = 25,271.10

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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.