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Finding the Fourth Proportional to 53,482.61, 80,248.50 and 20,214.23

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Solution

The fourth proportional to 53,482.61, 80,248.50 and 20,214.23 is: 30,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,482.61 : 80,248.50 = 20,214.23 : x
  2. Step 2: Convert to fraction form
    53,482.61/80,248.50 = 20,214.23/x
  3. Step 3: Cross multiply
    53,482.61x = 80,248.50 × 20,214.23
  4. Step 4: Simplify right side
    53,482.61x = 1,622,161,234.91
  5. Step 5: Solve for x
    x = 1,622,161,234.91/53,482.61
  6. Step 6: Final answer
    x = 30,330.63

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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.