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Finding the Fourth Proportional to 18,854.54, 28,248.07 and 12,595.60

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Solution

The fourth proportional to 18,854.54, 28,248.07 and 12,595.60 is: 18,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.54 : 28,248.07 = 12,595.60 : x
  2. Step 2: Convert to fraction form
    18,854.54/28,248.07 = 12,595.60/x
  3. Step 3: Cross multiply
    18,854.54x = 28,248.07 × 12,595.60
  4. Step 4: Simplify right side
    18,854.54x = 355,801,186.27
  5. Step 5: Solve for x
    x = 355,801,186.27/18,854.54
  6. Step 6: Final answer
    x = 18,870.85

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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.