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Finding the Fourth Proportional to 45,772.80, 68,612.48 and 26,009.60

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Solution

The fourth proportional to 45,772.80, 68,612.48 and 26,009.60 is: 38,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,772.80 : 68,612.48 = 26,009.60 : x
  2. Step 2: Convert to fraction form
    45,772.80/68,612.48 = 26,009.60/x
  3. Step 3: Cross multiply
    45,772.80x = 68,612.48 × 26,009.60
  4. Step 4: Simplify right side
    45,772.80x = 1,784,583,159.81
  5. Step 5: Solve for x
    x = 1,784,583,159.81/45,772.80
  6. Step 6: Final answer
    x = 38,987.85

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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.