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Finding the Fourth Proportional to 26,411.72, 39,595.72 and 12,364.88

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Solution

The fourth proportional to 26,411.72, 39,595.72 and 12,364.88 is: 18,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,411.72 : 39,595.72 = 12,364.88 : x
  2. Step 2: Convert to fraction form
    26,411.72/39,595.72 = 12,364.88/x
  3. Step 3: Cross multiply
    26,411.72x = 39,595.72 × 12,364.88
  4. Step 4: Simplify right side
    26,411.72x = 489,596,326.31
  5. Step 5: Solve for x
    x = 489,596,326.31/26,411.72
  6. Step 6: Final answer
    x = 18,537.09

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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.