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Finding the Fourth Proportional to 18,877.50, 26,050.95 and 10,379.77

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Solution

The fourth proportional to 18,877.50, 26,050.95 and 10,379.77 is: 14,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.50 : 26,050.95 = 10,379.77 : x
  2. Step 2: Convert to fraction form
    18,877.50/26,050.95 = 10,379.77/x
  3. Step 3: Cross multiply
    18,877.50x = 26,050.95 × 10,379.77
  4. Step 4: Simplify right side
    18,877.50x = 270,402,804.15
  5. Step 5: Solve for x
    x = 270,402,804.15/18,877.50
  6. Step 6: Final answer
    x = 14,324.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.