Home / 51,186.31-70,639.29-28,525.33

Finding the Fourth Proportional to 51,186.31, 70,639.29 and 28,525.33

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Solution

The fourth proportional to 51,186.31, 70,639.29 and 28,525.33 is: 39,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,186.31 : 70,639.29 = 28,525.33 : x
  2. Step 2: Convert to fraction form
    51,186.31/70,639.29 = 28,525.33/x
  3. Step 3: Cross multiply
    51,186.31x = 70,639.29 × 28,525.33
  4. Step 4: Simplify right side
    51,186.31x = 2,015,009,058.22
  5. Step 5: Solve for x
    x = 2,015,009,058.22/51,186.31
  6. Step 6: Final answer
    x = 39,366.17

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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.