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Finding the Fourth Proportional to 54,875.88, 75,638.10 and 36,720.10

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Solution

The fourth proportional to 54,875.88, 75,638.10 and 36,720.10 is: 50,613.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,875.88 : 75,638.10 = 36,720.10 : x
  2. Step 2: Convert to fraction form
    54,875.88/75,638.10 = 36,720.10/x
  3. Step 3: Cross multiply
    54,875.88x = 75,638.10 × 36,720.10
  4. Step 4: Simplify right side
    54,875.88x = 2,777,438,828.06
  5. Step 5: Solve for x
    x = 2,777,438,828.06/54,875.88
  6. Step 6: Final answer
    x = 50,613.11

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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.