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Finding the Fourth Proportional to 52,777.76, 72,830.48 and 28,899.92

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Solution

The fourth proportional to 52,777.76, 72,830.48 and 28,899.92 is: 39,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.76 : 72,830.48 = 28,899.92 : x
  2. Step 2: Convert to fraction form
    52,777.76/72,830.48 = 28,899.92/x
  3. Step 3: Cross multiply
    52,777.76x = 72,830.48 × 28,899.92
  4. Step 4: Simplify right side
    52,777.76x = 2,104,795,045.56
  5. Step 5: Solve for x
    x = 2,104,795,045.56/52,777.76
  6. Step 6: Final answer
    x = 39,880.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.