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Finding the Fourth Proportional to 12,658.35, 17,750.85 and 12,658.35

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Solution

The fourth proportional to 12,658.35, 17,750.85 and 12,658.35 is: 17,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.35 : 17,750.85 = 12,658.35 : x
  2. Step 2: Convert to fraction form
    12,658.35/17,750.85 = 12,658.35/x
  3. Step 3: Cross multiply
    12,658.35x = 17,750.85 × 12,658.35
  4. Step 4: Simplify right side
    12,658.35x = 224,696,472.10
  5. Step 5: Solve for x
    x = 224,696,472.10/12,658.35
  6. Step 6: Final answer
    x = 17,750.85

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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.