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Finding the Fourth Proportional to 44,647.20, 66,970.80 and 39,592.80

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Solution

The fourth proportional to 44,647.20, 66,970.80 and 39,592.80 is: 59,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,647.20 : 66,970.80 = 39,592.80 : x
  2. Step 2: Convert to fraction form
    44,647.20/66,970.80 = 39,592.80/x
  3. Step 3: Cross multiply
    44,647.20x = 66,970.80 × 39,592.80
  4. Step 4: Simplify right side
    44,647.20x = 2,651,561,490.24
  5. Step 5: Solve for x
    x = 2,651,561,490.24/44,647.20
  6. Step 6: Final answer
    x = 59,389.20

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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.