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Finding the Fourth Proportional to 37,643.60, 56,465.40 and 36,768.80

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Solution

The fourth proportional to 37,643.60, 56,465.40 and 36,768.80 is: 55,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,643.60 : 56,465.40 = 36,768.80 : x
  2. Step 2: Convert to fraction form
    37,643.60/56,465.40 = 36,768.80/x
  3. Step 3: Cross multiply
    37,643.60x = 56,465.40 × 36,768.80
  4. Step 4: Simplify right side
    37,643.60x = 2,076,164,999.52
  5. Step 5: Solve for x
    x = 2,076,164,999.52/37,643.60
  6. Step 6: Final answer
    x = 55,153.20

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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.