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Finding the Fourth Proportional to 52,552.80, 78,829.20 and 51,861.60

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Solution

The fourth proportional to 52,552.80, 78,829.20 and 51,861.60 is: 77,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,552.80 : 78,829.20 = 51,861.60 : x
  2. Step 2: Convert to fraction form
    52,552.80/78,829.20 = 51,861.60/x
  3. Step 3: Cross multiply
    52,552.80x = 78,829.20 × 51,861.60
  4. Step 4: Simplify right side
    52,552.80x = 4,088,208,438.72
  5. Step 5: Solve for x
    x = 4,088,208,438.72/52,552.80
  6. Step 6: Final answer
    x = 77,792.40

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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.