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Finding the Fourth Proportional to 82,813.60, 124,210.80 and 23,658.40

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Solution

The fourth proportional to 82,813.60, 124,210.80 and 23,658.40 is: 35,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,813.60 : 124,210.80 = 23,658.40 : x
  2. Step 2: Convert to fraction form
    82,813.60/124,210.80 = 23,658.40/x
  3. Step 3: Cross multiply
    82,813.60x = 124,210.80 × 23,658.40
  4. Step 4: Simplify right side
    82,813.60x = 2,938,628,790.72
  5. Step 5: Solve for x
    x = 2,938,628,790.72/82,813.60
  6. Step 6: Final answer
    x = 35,484.86

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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.