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Finding the Fourth Proportional to 57,420.52, 79,264.62 and 53,833.48

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Solution

The fourth proportional to 57,420.52, 79,264.62 and 53,833.48 is: 74,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420.52 : 79,264.62 = 53,833.48 : x
  2. Step 2: Convert to fraction form
    57,420.52/79,264.62 = 53,833.48/x
  3. Step 3: Cross multiply
    57,420.52x = 79,264.62 × 53,833.48
  4. Step 4: Simplify right side
    57,420.52x = 4,267,090,335.48
  5. Step 5: Solve for x
    x = 4,267,090,335.48/57,420.52
  6. Step 6: Final answer
    x = 74,312.99

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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.