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Finding the Fourth Proportional to 82,830.90, 124,246.35 and 27,426.90

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Solution

The fourth proportional to 82,830.90, 124,246.35 and 27,426.90 is: 41,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,830.90 : 124,246.35 = 27,426.90 : x
  2. Step 2: Convert to fraction form
    82,830.90/124,246.35 = 27,426.90/x
  3. Step 3: Cross multiply
    82,830.90x = 124,246.35 × 27,426.90
  4. Step 4: Simplify right side
    82,830.90x = 3,407,692,216.82
  5. Step 5: Solve for x
    x = 3,407,692,216.82/82,830.90
  6. Step 6: Final answer
    x = 41,140.35

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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.