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Finding the Fourth Proportional to 72,422.40, 94,252.80 and 72,422.40

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Solution

The fourth proportional to 72,422.40, 94,252.80 and 72,422.40 is: 94,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,422.40 : 94,252.80 = 72,422.40 : x
  2. Step 2: Convert to fraction form
    72,422.40/94,252.80 = 72,422.40/x
  3. Step 3: Cross multiply
    72,422.40x = 94,252.80 × 72,422.40
  4. Step 4: Simplify right side
    72,422.40x = 6,826,013,982.72
  5. Step 5: Solve for x
    x = 6,826,013,982.72/72,422.40
  6. Step 6: Final answer
    x = 94,252.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.