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Finding the Fourth Proportional to 66,570.76, 91,949.88 and 48,393.10

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Solution

The fourth proportional to 66,570.76, 91,949.88 and 48,393.10 is: 66,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.76 : 91,949.88 = 48,393.10 : x
  2. Step 2: Convert to fraction form
    66,570.76/91,949.88 = 48,393.10/x
  3. Step 3: Cross multiply
    66,570.76x = 91,949.88 × 48,393.10
  4. Step 4: Simplify right side
    66,570.76x = 4,449,739,737.83
  5. Step 5: Solve for x
    x = 4,449,739,737.83/66,570.76
  6. Step 6: Final answer
    x = 66,842.26

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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.