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Finding the Fourth Proportional to 15,706.10, 22,017.70 and 15,706.10

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Solution

The fourth proportional to 15,706.10, 22,017.70 and 15,706.10 is: 22,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.10 : 22,017.70 = 15,706.10 : x
  2. Step 2: Convert to fraction form
    15,706.10/22,017.70 = 15,706.10/x
  3. Step 3: Cross multiply
    15,706.10x = 22,017.70 × 15,706.10
  4. Step 4: Simplify right side
    15,706.10x = 345,812,197.97
  5. Step 5: Solve for x
    x = 345,812,197.97/15,706.10
  6. Step 6: Final answer
    x = 22,017.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.