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Finding the Fourth Proportional to 30,445.52, 45,672.63 and 9,387.34

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Solution

The fourth proportional to 30,445.52, 45,672.63 and 9,387.34 is: 14,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.52 : 45,672.63 = 9,387.34 : x
  2. Step 2: Convert to fraction form
    30,445.52/45,672.63 = 9,387.34/x
  3. Step 3: Cross multiply
    30,445.52x = 45,672.63 × 9,387.34
  4. Step 4: Simplify right side
    30,445.52x = 428,744,506.50
  5. Step 5: Solve for x
    x = 428,744,506.50/30,445.52
  6. Step 6: Final answer
    x = 14,082.35

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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.