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Finding the Fourth Proportional to 52,695.99, 72,722.20 and 28,822.67

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Solution

The fourth proportional to 52,695.99, 72,722.20 and 28,822.67 is: 39,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,695.99 : 72,722.20 = 28,822.67 : x
  2. Step 2: Convert to fraction form
    52,695.99/72,722.20 = 28,822.67/x
  3. Step 3: Cross multiply
    52,695.99x = 72,722.20 × 28,822.67
  4. Step 4: Simplify right side
    52,695.99x = 2,096,047,536.61
  5. Step 5: Solve for x
    x = 2,096,047,536.61/52,695.99
  6. Step 6: Final answer
    x = 39,776.22

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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.