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Finding the Fourth Proportional to 15,696.88, 23,545.73 and 6,931.87

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Solution

The fourth proportional to 15,696.88, 23,545.73 and 6,931.87 is: 10,397.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.88 : 23,545.73 = 6,931.87 : x
  2. Step 2: Convert to fraction form
    15,696.88/23,545.73 = 6,931.87/x
  3. Step 3: Cross multiply
    15,696.88x = 23,545.73 × 6,931.87
  4. Step 4: Simplify right side
    15,696.88x = 163,215,939.42
  5. Step 5: Solve for x
    x = 163,215,939.42/15,696.88
  6. Step 6: Final answer
    x = 10,397.99

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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.