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Finding the Fourth Proportional to 37,680.19, 52,000.48 and 20,913.19

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Solution

The fourth proportional to 37,680.19, 52,000.48 and 20,913.19 is: 28,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,680.19 : 52,000.48 = 20,913.19 : x
  2. Step 2: Convert to fraction form
    37,680.19/52,000.48 = 20,913.19/x
  3. Step 3: Cross multiply
    37,680.19x = 52,000.48 × 20,913.19
  4. Step 4: Simplify right side
    37,680.19x = 1,087,495,814.47
  5. Step 5: Solve for x
    x = 1,087,495,814.47/37,680.19
  6. Step 6: Final answer
    x = 28,861.21

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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.