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Finding the Fourth Proportional to 73,007.60, 109,485.80 and 37,935.60

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Solution

The fourth proportional to 73,007.60, 109,485.80 and 37,935.60 is: 56,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,007.60 : 109,485.80 = 37,935.60 : x
  2. Step 2: Convert to fraction form
    73,007.60/109,485.80 = 37,935.60/x
  3. Step 3: Cross multiply
    73,007.60x = 109,485.80 × 37,935.60
  4. Step 4: Simplify right side
    73,007.60x = 4,153,409,514.48
  5. Step 5: Solve for x
    x = 4,153,409,514.48/73,007.60
  6. Step 6: Final answer
    x = 56,890.10

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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.