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Finding the Fourth Proportional to 25,360.72, 34,985.99 and 16,411.11

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Solution

The fourth proportional to 25,360.72, 34,985.99 and 16,411.11 is: 22,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,360.72 : 34,985.99 = 16,411.11 : x
  2. Step 2: Convert to fraction form
    25,360.72/34,985.99 = 16,411.11/x
  3. Step 3: Cross multiply
    25,360.72x = 34,985.99 × 16,411.11
  4. Step 4: Simplify right side
    25,360.72x = 574,158,930.35
  5. Step 5: Solve for x
    x = 574,158,930.35/25,360.72
  6. Step 6: Final answer
    x = 22,639.69

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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.