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Finding the Fourth Proportional to 60,672.70, 91,009.05 and 54,330.40

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Solution

The fourth proportional to 60,672.70, 91,009.05 and 54,330.40 is: 81,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,672.70 : 91,009.05 = 54,330.40 : x
  2. Step 2: Convert to fraction form
    60,672.70/91,009.05 = 54,330.40/x
  3. Step 3: Cross multiply
    60,672.70x = 91,009.05 × 54,330.40
  4. Step 4: Simplify right side
    60,672.70x = 4,944,558,090.12
  5. Step 5: Solve for x
    x = 4,944,558,090.12/60,672.70
  6. Step 6: Final answer
    x = 81,495.60

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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.