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Finding the Fourth Proportional to 82,862.40, 124,293.60 and 27,458.40

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Solution

The fourth proportional to 82,862.40, 124,293.60 and 27,458.40 is: 41,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,862.40 : 124,293.60 = 27,458.40 : x
  2. Step 2: Convert to fraction form
    82,862.40/124,293.60 = 27,458.40/x
  3. Step 3: Cross multiply
    82,862.40x = 124,293.60 × 27,458.40
  4. Step 4: Simplify right side
    82,862.40x = 3,412,903,386.24
  5. Step 5: Solve for x
    x = 3,412,903,386.24/82,862.40
  6. Step 6: Final answer
    x = 41,187.60

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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.