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Finding the Fourth Proportional to 51,154.84, 70,603.49 and 28,798.84

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Solution

The fourth proportional to 51,154.84, 70,603.49 and 28,798.84 is: 39,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,154.84 : 70,603.49 = 28,798.84 : x
  2. Step 2: Convert to fraction form
    51,154.84/70,603.49 = 28,798.84/x
  3. Step 3: Cross multiply
    51,154.84x = 70,603.49 × 28,798.84
  4. Step 4: Simplify right side
    51,154.84x = 2,033,298,611.95
  5. Step 5: Solve for x
    x = 2,033,298,611.95/51,154.84
  6. Step 6: Final answer
    x = 39,747.92

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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.