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Finding the Fourth Proportional to 25,220.40, 37,830.60 and 22,148.40

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Solution

The fourth proportional to 25,220.40, 37,830.60 and 22,148.40 is: 33,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,220.40 : 37,830.60 = 22,148.40 : x
  2. Step 2: Convert to fraction form
    25,220.40/37,830.60 = 22,148.40/x
  3. Step 3: Cross multiply
    25,220.40x = 37,830.60 × 22,148.40
  4. Step 4: Simplify right side
    25,220.40x = 837,887,261.04
  5. Step 5: Solve for x
    x = 837,887,261.04/25,220.40
  6. Step 6: Final answer
    x = 33,222.60

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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.