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Finding the Fourth Proportional to 45,762.60, 68,339.36 and 45,267.80

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Solution

The fourth proportional to 45,762.60, 68,339.36 and 45,267.80 is: 67,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,762.60 : 68,339.36 = 45,267.80 : x
  2. Step 2: Convert to fraction form
    45,762.60/68,339.36 = 45,267.80/x
  3. Step 3: Cross multiply
    45,762.60x = 68,339.36 × 45,267.80
  4. Step 4: Simplify right side
    45,762.60x = 3,093,572,480.61
  5. Step 5: Solve for x
    x = 3,093,572,480.61/45,762.60
  6. Step 6: Final answer
    x = 67,600.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.