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Finding the Fourth Proportional to 52,695.64, 72,722.10 and 28,823.32

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Solution

The fourth proportional to 52,695.64, 72,722.10 and 28,823.32 is: 39,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,695.64 : 72,722.10 = 28,823.32 : x
  2. Step 2: Convert to fraction form
    52,695.64/72,722.10 = 28,823.32/x
  3. Step 3: Cross multiply
    52,695.64x = 72,722.10 × 28,823.32
  4. Step 4: Simplify right side
    52,695.64x = 2,096,092,359.37
  5. Step 5: Solve for x
    x = 2,096,092,359.37/52,695.64
  6. Step 6: Final answer
    x = 39,777.34

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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.