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Finding the Fourth Proportional to 30,375.08, 41,916.66 and 17,808.20

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Solution

The fourth proportional to 30,375.08, 41,916.66 and 17,808.20 is: 24,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.08 : 41,916.66 = 17,808.20 : x
  2. Step 2: Convert to fraction form
    30,375.08/41,916.66 = 17,808.20/x
  3. Step 3: Cross multiply
    30,375.08x = 41,916.66 × 17,808.20
  4. Step 4: Simplify right side
    30,375.08x = 746,460,264.61
  5. Step 5: Solve for x
    x = 746,460,264.61/30,375.08
  6. Step 6: Final answer
    x = 24,574.76

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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.