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Finding the Fourth Proportional to 12,602.70, 18,774.72 and 12,034.08

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Solution

The fourth proportional to 12,602.70, 18,774.72 and 12,034.08 is: 17,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.70 : 18,774.72 = 12,034.08 : x
  2. Step 2: Convert to fraction form
    12,602.70/18,774.72 = 12,034.08/x
  3. Step 3: Cross multiply
    12,602.70x = 18,774.72 × 12,034.08
  4. Step 4: Simplify right side
    12,602.70x = 225,936,482.46
  5. Step 5: Solve for x
    x = 225,936,482.46/12,602.70
  6. Step 6: Final answer
    x = 17,927.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.