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Finding the Fourth Proportional to 84,750.71, 127,146.61 and 25,582.84

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Solution

The fourth proportional to 84,750.71, 127,146.61 and 25,582.84 is: 38,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,750.71 : 127,146.61 = 25,582.84 : x
  2. Step 2: Convert to fraction form
    84,750.71/127,146.61 = 25,582.84/x
  3. Step 3: Cross multiply
    84,750.71x = 127,146.61 × 25,582.84
  4. Step 4: Simplify right side
    84,750.71x = 3,252,771,094.28
  5. Step 5: Solve for x
    x = 3,252,771,094.28/84,750.71
  6. Step 6: Final answer
    x = 38,380.46

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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.