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Finding the Fourth Proportional to 93,451.80, 128,962.62 and 57,627.48

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Solution

The fourth proportional to 93,451.80, 128,962.62 and 57,627.48 is: 79,525.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,451.80 : 128,962.62 = 57,627.48 : x
  2. Step 2: Convert to fraction form
    93,451.80/128,962.62 = 57,627.48/x
  3. Step 3: Cross multiply
    93,451.80x = 128,962.62 × 57,627.48
  4. Step 4: Simplify right side
    93,451.80x = 7,431,790,804.80
  5. Step 5: Solve for x
    x = 7,431,790,804.80/93,451.80
  6. Step 6: Final answer
    x = 79,525.39

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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.