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Finding the Fourth Proportional to 85,059.64, 127,574.70 and 22,715.56

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Solution

The fourth proportional to 85,059.64, 127,574.70 and 22,715.56 is: 34,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,059.64 : 127,574.70 = 22,715.56 : x
  2. Step 2: Convert to fraction form
    85,059.64/127,574.70 = 22,715.56/x
  3. Step 3: Cross multiply
    85,059.64x = 127,574.70 × 22,715.56
  4. Step 4: Simplify right side
    85,059.64x = 2,897,930,752.33
  5. Step 5: Solve for x
    x = 2,897,930,752.33/85,059.64
  6. Step 6: Final answer
    x = 34,069.40

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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.