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Finding the Fourth Proportional to 14,750.40, 22,125.60 and 4,220.40

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Solution

The fourth proportional to 14,750.40, 22,125.60 and 4,220.40 is: 6,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.40 : 22,125.60 = 4,220.40 : x
  2. Step 2: Convert to fraction form
    14,750.40/22,125.60 = 4,220.40/x
  3. Step 3: Cross multiply
    14,750.40x = 22,125.60 × 4,220.40
  4. Step 4: Simplify right side
    14,750.40x = 93,378,882.24
  5. Step 5: Solve for x
    x = 93,378,882.24/14,750.40
  6. Step 6: Final answer
    x = 6,330.60

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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.