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Finding the Fourth Proportional to 44,321.80, 66,482.70 and 42,572.20

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Solution

The fourth proportional to 44,321.80, 66,482.70 and 42,572.20 is: 63,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,321.80 : 66,482.70 = 42,572.20 : x
  2. Step 2: Convert to fraction form
    44,321.80/66,482.70 = 42,572.20/x
  3. Step 3: Cross multiply
    44,321.80x = 66,482.70 × 42,572.20
  4. Step 4: Simplify right side
    44,321.80x = 2,830,314,800.94
  5. Step 5: Solve for x
    x = 2,830,314,800.94/44,321.80
  6. Step 6: Final answer
    x = 63,858.30

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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.