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Finding the Fourth Proportional to 38,766.40, 58,115.04 and 15,376.84

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Solution

The fourth proportional to 38,766.40, 58,115.04 and 15,376.84 is: 23,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,766.40 : 58,115.04 = 15,376.84 : x
  2. Step 2: Convert to fraction form
    38,766.40/58,115.04 = 15,376.84/x
  3. Step 3: Cross multiply
    38,766.40x = 58,115.04 × 15,376.84
  4. Step 4: Simplify right side
    38,766.40x = 893,625,671.67
  5. Step 5: Solve for x
    x = 893,625,671.67/38,766.40
  6. Step 6: Final answer
    x = 23,051.55

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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.