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Finding the Fourth Proportional to 16,561.70, 22,855.95 and 9,488.14

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Solution

The fourth proportional to 16,561.70, 22,855.95 and 9,488.14 is: 13,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,561.70 : 22,855.95 = 9,488.14 : x
  2. Step 2: Convert to fraction form
    16,561.70/22,855.95 = 9,488.14/x
  3. Step 3: Cross multiply
    16,561.70x = 22,855.95 × 9,488.14
  4. Step 4: Simplify right side
    16,561.70x = 216,860,482.00
  5. Step 5: Solve for x
    x = 216,860,482.00/16,561.70
  6. Step 6: Final answer
    x = 13,094.09

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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.