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Finding the Fourth Proportional to 37,762.40, 56,643.60 and 25,320.80

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Solution

The fourth proportional to 37,762.40, 56,643.60 and 25,320.80 is: 37,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,762.40 : 56,643.60 = 25,320.80 : x
  2. Step 2: Convert to fraction form
    37,762.40/56,643.60 = 25,320.80/x
  3. Step 3: Cross multiply
    37,762.40x = 56,643.60 × 25,320.80
  4. Step 4: Simplify right side
    37,762.40x = 1,434,261,266.88
  5. Step 5: Solve for x
    x = 1,434,261,266.88/37,762.40
  6. Step 6: Final answer
    x = 37,981.20

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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.