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Finding the Fourth Proportional to 48,990.60, 73,485.42 and 13,925.64

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Solution

The fourth proportional to 48,990.60, 73,485.42 and 13,925.64 is: 20,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.60 : 73,485.42 = 13,925.64 : x
  2. Step 2: Convert to fraction form
    48,990.60/73,485.42 = 13,925.64/x
  3. Step 3: Cross multiply
    48,990.60x = 73,485.42 × 13,925.64
  4. Step 4: Simplify right side
    48,990.60x = 1,023,331,504.17
  5. Step 5: Solve for x
    x = 1,023,331,504.17/48,990.60
  6. Step 6: Final answer
    x = 20,888.32

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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.