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Finding the Fourth Proportional to 82,955.70, 124,421.40 and 23,785.20

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Solution

The fourth proportional to 82,955.70, 124,421.40 and 23,785.20 is: 35,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,955.70 : 124,421.40 = 23,785.20 : x
  2. Step 2: Convert to fraction form
    82,955.70/124,421.40 = 23,785.20/x
  3. Step 3: Cross multiply
    82,955.70x = 124,421.40 × 23,785.20
  4. Step 4: Simplify right side
    82,955.70x = 2,959,387,883.28
  5. Step 5: Solve for x
    x = 2,959,387,883.28/82,955.70
  6. Step 6: Final answer
    x = 35,674.32

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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.