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Finding the Fourth Proportional to 72,872.66, 109,312.90 and 22,956.66

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Solution

The fourth proportional to 72,872.66, 109,312.90 and 22,956.66 is: 34,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,872.66 : 109,312.90 = 22,956.66 : x
  2. Step 2: Convert to fraction form
    72,872.66/109,312.90 = 22,956.66/x
  3. Step 3: Cross multiply
    72,872.66x = 109,312.90 × 22,956.66
  4. Step 4: Simplify right side
    72,872.66x = 2,509,459,021.52
  5. Step 5: Solve for x
    x = 2,509,459,021.52/72,872.66
  6. Step 6: Final answer
    x = 34,436.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.