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Finding the Fourth Proportional to 93,452.18, 128,963.14 and 57,627.86

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Solution

The fourth proportional to 93,452.18, 128,963.14 and 57,627.86 is: 79,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,452.18 : 128,963.14 = 57,627.86 : x
  2. Step 2: Convert to fraction form
    93,452.18/128,963.14 = 57,627.86/x
  3. Step 3: Cross multiply
    93,452.18x = 128,963.14 × 57,627.86
  4. Step 4: Simplify right side
    93,452.18x = 7,431,868,988.20
  5. Step 5: Solve for x
    x = 7,431,868,988.20/93,452.18
  6. Step 6: Final answer
    x = 79,525.91

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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.