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Finding the Fourth Proportional to 45,009.60, 67,471.20 and 35,008.80

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Solution

The fourth proportional to 45,009.60, 67,471.20 and 35,008.80 is: 52,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.60 : 67,471.20 = 35,008.80 : x
  2. Step 2: Convert to fraction form
    45,009.60/67,471.20 = 35,008.80/x
  3. Step 3: Cross multiply
    45,009.60x = 67,471.20 × 35,008.80
  4. Step 4: Simplify right side
    45,009.60x = 2,362,085,746.56
  5. Step 5: Solve for x
    x = 2,362,085,746.56/45,009.60
  6. Step 6: Final answer
    x = 52,479.60

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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.