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Finding the Fourth Proportional to 51,015.61, 70,435.84 and 45,621.26

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Solution

The fourth proportional to 51,015.61, 70,435.84 and 45,621.26 is: 62,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.61 : 70,435.84 = 45,621.26 : x
  2. Step 2: Convert to fraction form
    51,015.61/70,435.84 = 45,621.26/x
  3. Step 3: Cross multiply
    51,015.61x = 70,435.84 × 45,621.26
  4. Step 4: Simplify right side
    51,015.61x = 3,213,372,003.07
  5. Step 5: Solve for x
    x = 3,213,372,003.07/51,015.61
  6. Step 6: Final answer
    x = 62,988.01

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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.