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Finding the Fourth Proportional to 66,244.80, 91,368.72 and 48,069.60

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Solution

The fourth proportional to 66,244.80, 91,368.72 and 48,069.60 is: 66,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,244.80 : 91,368.72 = 48,069.60 : x
  2. Step 2: Convert to fraction form
    66,244.80/91,368.72 = 48,069.60/x
  3. Step 3: Cross multiply
    66,244.80x = 91,368.72 × 48,069.60
  4. Step 4: Simplify right side
    66,244.80x = 4,392,057,822.91
  5. Step 5: Solve for x
    x = 4,392,057,822.91/66,244.80
  6. Step 6: Final answer
    x = 66,300.42

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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.