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Finding the Fourth Proportional to 33,987.60, 50,931.60 and 30,477.60

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Solution

The fourth proportional to 33,987.60, 50,931.60 and 30,477.60 is: 45,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,987.60 : 50,931.60 = 30,477.60 : x
  2. Step 2: Convert to fraction form
    33,987.60/50,931.60 = 30,477.60/x
  3. Step 3: Cross multiply
    33,987.60x = 50,931.60 × 30,477.60
  4. Step 4: Simplify right side
    33,987.60x = 1,552,272,932.16
  5. Step 5: Solve for x
    x = 1,552,272,932.16/33,987.60
  6. Step 6: Final answer
    x = 45,671.74

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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.