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Finding the Fourth Proportional to 51,225.99, 70,692.10 and 28,564.92

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Solution

The fourth proportional to 51,225.99, 70,692.10 and 28,564.92 is: 39,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,225.99 : 70,692.10 = 28,564.92 : x
  2. Step 2: Convert to fraction form
    51,225.99/70,692.10 = 28,564.92/x
  3. Step 3: Cross multiply
    51,225.99x = 70,692.10 × 28,564.92
  4. Step 4: Simplify right side
    51,225.99x = 2,019,313,831.57
  5. Step 5: Solve for x
    x = 2,019,313,831.57/51,225.99
  6. Step 6: Final answer
    x = 39,419.71

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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.