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Finding the Fourth Proportional to 30,798.88, 42,492.04 and 25,123.85

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Solution

The fourth proportional to 30,798.88, 42,492.04 and 25,123.85 is: 34,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.88 : 42,492.04 = 25,123.85 : x
  2. Step 2: Convert to fraction form
    30,798.88/42,492.04 = 25,123.85/x
  3. Step 3: Cross multiply
    30,798.88x = 42,492.04 × 25,123.85
  4. Step 4: Simplify right side
    30,798.88x = 1,067,563,545.04
  5. Step 5: Solve for x
    x = 1,067,563,545.04/30,798.88
  6. Step 6: Final answer
    x = 34,662.41

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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.