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Finding the Fourth Proportional to 55,130.80, 82,501.80 and 37,634.80

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Solution

The fourth proportional to 55,130.80, 82,501.80 and 37,634.80 is: 56,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.80 : 82,501.80 = 37,634.80 : x
  2. Step 2: Convert to fraction form
    55,130.80/82,501.80 = 37,634.80/x
  3. Step 3: Cross multiply
    55,130.80x = 82,501.80 × 37,634.80
  4. Step 4: Simplify right side
    55,130.80x = 3,104,938,742.64
  5. Step 5: Solve for x
    x = 3,104,938,742.64/55,130.80
  6. Step 6: Final answer
    x = 56,319.49

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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.