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Finding the Fourth Proportional to 27,320.40, 40,951.80 and 15,608.40

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Solution

The fourth proportional to 27,320.40, 40,951.80 and 15,608.40 is: 23,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.40 : 40,951.80 = 15,608.40 : x
  2. Step 2: Convert to fraction form
    27,320.40/40,951.80 = 15,608.40/x
  3. Step 3: Cross multiply
    27,320.40x = 40,951.80 × 15,608.40
  4. Step 4: Simplify right side
    27,320.40x = 639,192,075.12
  5. Step 5: Solve for x
    x = 639,192,075.12/27,320.40
  6. Step 6: Final answer
    x = 23,396.15

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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.