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Finding the Fourth Proportional to 27,381.52, 40,877.78 and 26,409.52

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Solution

The fourth proportional to 27,381.52, 40,877.78 and 26,409.52 is: 39,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.52 : 40,877.78 = 26,409.52 : x
  2. Step 2: Convert to fraction form
    27,381.52/40,877.78 = 26,409.52/x
  3. Step 3: Cross multiply
    27,381.52x = 40,877.78 × 26,409.52
  4. Step 4: Simplify right side
    27,381.52x = 1,079,562,548.47
  5. Step 5: Solve for x
    x = 1,079,562,548.47/27,381.52
  6. Step 6: Final answer
    x = 39,426.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.