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Finding the Fourth Proportional to 26,981.52, 40,477.08 and 8,261.16

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Solution

The fourth proportional to 26,981.52, 40,477.08 and 8,261.16 is: 12,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,981.52 : 40,477.08 = 8,261.16 : x
  2. Step 2: Convert to fraction form
    26,981.52/40,477.08 = 8,261.16/x
  3. Step 3: Cross multiply
    26,981.52x = 40,477.08 × 8,261.16
  4. Step 4: Simplify right side
    26,981.52x = 334,387,634.21
  5. Step 5: Solve for x
    x = 334,387,634.21/26,981.52
  6. Step 6: Final answer
    x = 12,393.21

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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.