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Finding the Fourth Proportional to 73,009.60, 109,488.80 and 37,937.60

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Solution

The fourth proportional to 73,009.60, 109,488.80 and 37,937.60 is: 56,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,009.60 : 109,488.80 = 37,937.60 : x
  2. Step 2: Convert to fraction form
    73,009.60/109,488.80 = 37,937.60/x
  3. Step 3: Cross multiply
    73,009.60x = 109,488.80 × 37,937.60
  4. Step 4: Simplify right side
    73,009.60x = 4,153,742,298.88
  5. Step 5: Solve for x
    x = 4,153,742,298.88/73,009.60
  6. Step 6: Final answer
    x = 56,893.10

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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.