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Finding the Fourth Proportional to 52,904.80, 74,170.40 and 52,904.80

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Solution

The fourth proportional to 52,904.80, 74,170.40 and 52,904.80 is: 74,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,904.80 : 74,170.40 = 52,904.80 : x
  2. Step 2: Convert to fraction form
    52,904.80/74,170.40 = 52,904.80/x
  3. Step 3: Cross multiply
    52,904.80x = 74,170.40 × 52,904.80
  4. Step 4: Simplify right side
    52,904.80x = 3,923,970,177.92
  5. Step 5: Solve for x
    x = 3,923,970,177.92/52,904.80
  6. Step 6: Final answer
    x = 74,170.40

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Double scale
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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.