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Finding the Fourth Proportional to 17,905.68, 26,870.18 and 6,812.46

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Solution

The fourth proportional to 17,905.68, 26,870.18 and 6,812.46 is: 10,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.68 : 26,870.18 = 6,812.46 : x
  2. Step 2: Convert to fraction form
    17,905.68/26,870.18 = 6,812.46/x
  3. Step 3: Cross multiply
    17,905.68x = 26,870.18 × 6,812.46
  4. Step 4: Simplify right side
    17,905.68x = 183,052,075.94
  5. Step 5: Solve for x
    x = 183,052,075.94/17,905.68
  6. Step 6: Final answer
    x = 10,223.13

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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.