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Finding the Fourth Proportional to 32,991.60, 49,487.40 and 31,090.80

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Solution

The fourth proportional to 32,991.60, 49,487.40 and 31,090.80 is: 46,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.60 : 49,487.40 = 31,090.80 : x
  2. Step 2: Convert to fraction form
    32,991.60/49,487.40 = 31,090.80/x
  3. Step 3: Cross multiply
    32,991.60x = 49,487.40 × 31,090.80
  4. Step 4: Simplify right side
    32,991.60x = 1,538,602,855.92
  5. Step 5: Solve for x
    x = 1,538,602,855.92/32,991.60
  6. Step 6: Final answer
    x = 46,636.20

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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.