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Finding the Fourth Proportional to 25,557.80, 35,270.16 and 14,379.80

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Solution

The fourth proportional to 25,557.80, 35,270.16 and 14,379.80 is: 19,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,557.80 : 35,270.16 = 14,379.80 : x
  2. Step 2: Convert to fraction form
    25,557.80/35,270.16 = 14,379.80/x
  3. Step 3: Cross multiply
    25,557.80x = 35,270.16 × 14,379.80
  4. Step 4: Simplify right side
    25,557.80x = 507,177,846.77
  5. Step 5: Solve for x
    x = 507,177,846.77/25,557.80
  6. Step 6: Final answer
    x = 19,844.35

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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.