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Finding the Fourth Proportional to 25,262.40, 37,904.40 and 15,909.60

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Solution

The fourth proportional to 25,262.40, 37,904.40 and 15,909.60 is: 23,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,262.40 : 37,904.40 = 15,909.60 : x
  2. Step 2: Convert to fraction form
    25,262.40/37,904.40 = 15,909.60/x
  3. Step 3: Cross multiply
    25,262.40x = 37,904.40 × 15,909.60
  4. Step 4: Simplify right side
    25,262.40x = 603,043,842.24
  5. Step 5: Solve for x
    x = 603,043,842.24/25,262.40
  6. Step 6: Final answer
    x = 23,871.20

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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.