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Finding the Fourth Proportional to 57,335.10, 86,002.65 and 43,338.30

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Solution

The fourth proportional to 57,335.10, 86,002.65 and 43,338.30 is: 65,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,335.10 : 86,002.65 = 43,338.30 : x
  2. Step 2: Convert to fraction form
    57,335.10/86,002.65 = 43,338.30/x
  3. Step 3: Cross multiply
    57,335.10x = 86,002.65 × 43,338.30
  4. Step 4: Simplify right side
    57,335.10x = 3,727,208,646.50
  5. Step 5: Solve for x
    x = 3,727,208,646.50/57,335.10
  6. Step 6: Final answer
    x = 65,007.45

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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.