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Finding the Fourth Proportional to 22,711.16, 34,070.16 and 7,130

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Solution

The fourth proportional to 22,711.16, 34,070.16 and 7,130 is: 10,696.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.16 : 34,070.16 = 7,130 : x
  2. Step 2: Convert to fraction form
    22,711.16/34,070.16 = 7,130/x
  3. Step 3: Cross multiply
    22,711.16x = 34,070.16 × 7,130
  4. Step 4: Simplify right side
    22,711.16x = 242,920,240.80
  5. Step 5: Solve for x
    x = 242,920,240.80/22,711.16
  6. Step 6: Final answer
    x = 10,696.07

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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.