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Finding the Fourth Proportional to 18,895.64, 28,348.65 and 14,960.00

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Solution

The fourth proportional to 18,895.64, 28,348.65 and 14,960.00 is: 22,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.64 : 28,348.65 = 14,960.00 : x
  2. Step 2: Convert to fraction form
    18,895.64/28,348.65 = 14,960.00/x
  3. Step 3: Cross multiply
    18,895.64x = 28,348.65 × 14,960.00
  4. Step 4: Simplify right side
    18,895.64x = 424,095,795.14
  5. Step 5: Solve for x
    x = 424,095,795.14/18,895.64
  6. Step 6: Final answer
    x = 22,444.11

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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.