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Finding the Fourth Proportional to 14,605.80, 21,897.90 and 9,914.10

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Solution

The fourth proportional to 14,605.80, 21,897.90 and 9,914.10 is: 14,863.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.80 : 21,897.90 = 9,914.10 : x
  2. Step 2: Convert to fraction form
    14,605.80/21,897.90 = 9,914.10/x
  3. Step 3: Cross multiply
    14,605.80x = 21,897.90 × 9,914.10
  4. Step 4: Simplify right side
    14,605.80x = 217,097,970.39
  5. Step 5: Solve for x
    x = 217,097,970.39/14,605.80
  6. Step 6: Final answer
    x = 14,863.82

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1.5x scale

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.