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Finding the Fourth Proportional to 57,421.47, 79,232.02 and 31,927.12

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Solution

The fourth proportional to 57,421.47, 79,232.02 and 31,927.12 is: 44,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.47 : 79,232.02 = 31,927.12 : x
  2. Step 2: Convert to fraction form
    57,421.47/79,232.02 = 31,927.12/x
  3. Step 3: Cross multiply
    57,421.47x = 79,232.02 × 31,927.12
  4. Step 4: Simplify right side
    57,421.47x = 2,529,650,210.38
  5. Step 5: Solve for x
    x = 2,529,650,210.38/57,421.47
  6. Step 6: Final answer
    x = 44,054.08

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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.