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Finding the Fourth Proportional to 65,544.54, 90,488.79 and 43,253.34

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Solution

The fourth proportional to 65,544.54, 90,488.79 and 43,253.34 is: 59,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,544.54 : 90,488.79 = 43,253.34 : x
  2. Step 2: Convert to fraction form
    65,544.54/90,488.79 = 43,253.34/x
  3. Step 3: Cross multiply
    65,544.54x = 90,488.79 × 43,253.34
  4. Step 4: Simplify right side
    65,544.54x = 3,913,942,400.06
  5. Step 5: Solve for x
    x = 3,913,942,400.06/65,544.54
  6. Step 6: Final answer
    x = 59,714.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.