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Finding the Fourth Proportional to 19,586.80, 27,460.40 and 19,586.80

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Solution

The fourth proportional to 19,586.80, 27,460.40 and 19,586.80 is: 27,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.80 : 27,460.40 = 19,586.80 : x
  2. Step 2: Convert to fraction form
    19,586.80/27,460.40 = 19,586.80/x
  3. Step 3: Cross multiply
    19,586.80x = 27,460.40 × 19,586.80
  4. Step 4: Simplify right side
    19,586.80x = 537,861,362.72
  5. Step 5: Solve for x
    x = 537,861,362.72/19,586.80
  6. Step 6: Final answer
    x = 27,460.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.