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Finding the Fourth Proportional to 56,638.40, 84,946.24 and 53,828.24

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Solution

The fourth proportional to 56,638.40, 84,946.24 and 53,828.24 is: 80,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,638.40 : 84,946.24 = 53,828.24 : x
  2. Step 2: Convert to fraction form
    56,638.40/84,946.24 = 53,828.24/x
  3. Step 3: Cross multiply
    56,638.40x = 84,946.24 × 53,828.24
  4. Step 4: Simplify right side
    56,638.40x = 4,572,506,593.82
  5. Step 5: Solve for x
    x = 4,572,506,593.82/56,638.40
  6. Step 6: Final answer
    x = 80,731.56

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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.