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Finding the Fourth Proportional to 65,715.70, 98,573.55 and 58,717.30

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Solution

The fourth proportional to 65,715.70, 98,573.55 and 58,717.30 is: 88,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.70 : 98,573.55 = 58,717.30 : x
  2. Step 2: Convert to fraction form
    65,715.70/98,573.55 = 58,717.30/x
  3. Step 3: Cross multiply
    65,715.70x = 98,573.55 × 58,717.30
  4. Step 4: Simplify right side
    65,715.70x = 5,787,972,707.42
  5. Step 5: Solve for x
    x = 5,787,972,707.42/65,715.70
  6. Step 6: Final answer
    x = 88,075.95

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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.