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Finding the Fourth Proportional to 17,886.42, 26,818.62 and 8,526.06

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Solution

The fourth proportional to 17,886.42, 26,818.62 and 8,526.06 is: 12,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.42 : 26,818.62 = 8,526.06 : x
  2. Step 2: Convert to fraction form
    17,886.42/26,818.62 = 8,526.06/x
  3. Step 3: Cross multiply
    17,886.42x = 26,818.62 × 8,526.06
  4. Step 4: Simplify right side
    17,886.42x = 228,657,163.24
  5. Step 5: Solve for x
    x = 228,657,163.24/17,886.42
  6. Step 6: Final answer
    x = 12,783.84

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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.