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Finding the Fourth Proportional to 23,470.40, 35,218.40 and 9,620.80

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Solution

The fourth proportional to 23,470.40, 35,218.40 and 9,620.80 is: 14,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,470.40 : 35,218.40 = 9,620.80 : x
  2. Step 2: Convert to fraction form
    23,470.40/35,218.40 = 9,620.80/x
  3. Step 3: Cross multiply
    23,470.40x = 35,218.40 × 9,620.80
  4. Step 4: Simplify right side
    23,470.40x = 338,829,182.72
  5. Step 5: Solve for x
    x = 338,829,182.72/23,470.40
  6. Step 6: Final answer
    x = 14,436.45

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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.