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Finding the Fourth Proportional to 53,920.60, 80,880.90 and 35,258.20

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Solution

The fourth proportional to 53,920.60, 80,880.90 and 35,258.20 is: 52,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.60 : 80,880.90 = 35,258.20 : x
  2. Step 2: Convert to fraction form
    53,920.60/80,880.90 = 35,258.20/x
  3. Step 3: Cross multiply
    53,920.60x = 80,880.90 × 35,258.20
  4. Step 4: Simplify right side
    53,920.60x = 2,851,714,948.38
  5. Step 5: Solve for x
    x = 2,851,714,948.38/53,920.60
  6. Step 6: Final answer
    x = 52,887.30

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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.