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Finding the Fourth Proportional to 50,718.40, 71,122.40 and 50,718.40

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Solution

The fourth proportional to 50,718.40, 71,122.40 and 50,718.40 is: 71,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,718.40 : 71,122.40 = 50,718.40 : x
  2. Step 2: Convert to fraction form
    50,718.40/71,122.40 = 50,718.40/x
  3. Step 3: Cross multiply
    50,718.40x = 71,122.40 × 50,718.40
  4. Step 4: Simplify right side
    50,718.40x = 3,607,214,332.16
  5. Step 5: Solve for x
    x = 3,607,214,332.16/50,718.40
  6. Step 6: Final answer
    x = 71,122.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.