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Finding the Fourth Proportional to 57,840.51, 79,803.72 and 36,332.58

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Solution

The fourth proportional to 57,840.51, 79,803.72 and 36,332.58 is: 50,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,840.51 : 79,803.72 = 36,332.58 : x
  2. Step 2: Convert to fraction form
    57,840.51/79,803.72 = 36,332.58/x
  3. Step 3: Cross multiply
    57,840.51x = 79,803.72 × 36,332.58
  4. Step 4: Simplify right side
    57,840.51x = 2,899,475,041.20
  5. Step 5: Solve for x
    x = 2,899,475,041.20/57,840.51
  6. Step 6: Final answer
    x = 50,128.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.