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

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Solution

The fourth proportional to 65,715.70, 98,573.55 and 65,715.70 is: 98,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.70 : 98,573.55 = 65,715.70 : x
  2. Step 2: Convert to fraction form
    65,715.70/98,573.55 = 65,715.70/x
  3. Step 3: Cross multiply
    65,715.70x = 98,573.55 × 65,715.70
  4. Step 4: Simplify right side
    65,715.70x = 6,477,829,839.74
  5. Step 5: Solve for x
    x = 6,477,829,839.74/65,715.70
  6. Step 6: Final answer
    x = 98,573.55

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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.