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Finding the Fourth Proportional to 53,602.40, 80,432.40 and 22,440.80

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Solution

The fourth proportional to 53,602.40, 80,432.40 and 22,440.80 is: 33,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,602.40 : 80,432.40 = 22,440.80 : x
  2. Step 2: Convert to fraction form
    53,602.40/80,432.40 = 22,440.80/x
  3. Step 3: Cross multiply
    53,602.40x = 80,432.40 × 22,440.80
  4. Step 4: Simplify right side
    53,602.40x = 1,804,967,401.92
  5. Step 5: Solve for x
    x = 1,804,967,401.92/53,602.40
  6. Step 6: Final answer
    x = 33,673.26

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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.