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Finding the Fourth Proportional to 65,145.44, 89,777.84 and 52,210.01

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Solution

The fourth proportional to 65,145.44, 89,777.84 and 52,210.01 is: 71,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.44 : 89,777.84 = 52,210.01 : x
  2. Step 2: Convert to fraction form
    65,145.44/89,777.84 = 52,210.01/x
  3. Step 3: Cross multiply
    65,145.44x = 89,777.84 × 52,210.01
  4. Step 4: Simplify right side
    65,145.44x = 4,687,301,214.24
  5. Step 5: Solve for x
    x = 4,687,301,214.24/65,145.44
  6. Step 6: Final answer
    x = 71,951.34

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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.