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Finding the Fourth Proportional to 18,805.96, 25,952.52 and 10,307.98

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Solution

The fourth proportional to 18,805.96, 25,952.52 and 10,307.98 is: 14,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.96 : 25,952.52 = 10,307.98 : x
  2. Step 2: Convert to fraction form
    18,805.96/25,952.52 = 10,307.98/x
  3. Step 3: Cross multiply
    18,805.96x = 25,952.52 × 10,307.98
  4. Step 4: Simplify right side
    18,805.96x = 267,518,057.11
  5. Step 5: Solve for x
    x = 267,518,057.11/18,805.96
  6. Step 6: Final answer
    x = 14,225.17

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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.