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Finding the Fourth Proportional to 18,437.96, 25,444.40 and 10,479.98

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Solution

The fourth proportional to 18,437.96, 25,444.40 and 10,479.98 is: 14,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.96 : 25,444.40 = 10,479.98 : x
  2. Step 2: Convert to fraction form
    18,437.96/25,444.40 = 10,479.98/x
  3. Step 3: Cross multiply
    18,437.96x = 25,444.40 × 10,479.98
  4. Step 4: Simplify right side
    18,437.96x = 266,656,623.49
  5. Step 5: Solve for x
    x = 266,656,623.49/18,437.96
  6. Step 6: Final answer
    x = 14,462.38

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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.