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Finding the Fourth Proportional to 54,445.84, 75,132.84 and 30,572.08

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Solution

The fourth proportional to 54,445.84, 75,132.84 and 30,572.08 is: 42,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,445.84 : 75,132.84 = 30,572.08 : x
  2. Step 2: Convert to fraction form
    54,445.84/75,132.84 = 30,572.08/x
  3. Step 3: Cross multiply
    54,445.84x = 75,132.84 × 30,572.08
  4. Step 4: Simplify right side
    54,445.84x = 2,296,967,195.11
  5. Step 5: Solve for x
    x = 2,296,967,195.11/54,445.84
  6. Step 6: Final answer
    x = 42,188.11

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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.