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Finding the Fourth Proportional to 82,840.30, 124,276.65 and 35,455.30

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Solution

The fourth proportional to 82,840.30, 124,276.65 and 35,455.30 is: 53,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,840.30 : 124,276.65 = 35,455.30 : x
  2. Step 2: Convert to fraction form
    82,840.30/124,276.65 = 35,455.30/x
  3. Step 3: Cross multiply
    82,840.30x = 124,276.65 × 35,455.30
  4. Step 4: Simplify right side
    82,840.30x = 4,406,265,908.75
  5. Step 5: Solve for x
    x = 4,406,265,908.75/82,840.30
  6. Step 6: Final answer
    x = 53,189.88

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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.