Home / 57,980.16-86,970.84-18,536.40

Finding the Fourth Proportional to 57,980.16, 86,970.84 and 18,536.40

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Solution

The fourth proportional to 57,980.16, 86,970.84 and 18,536.40 is: 27,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.16 : 86,970.84 = 18,536.40 : x
  2. Step 2: Convert to fraction form
    57,980.16/86,970.84 = 18,536.40/x
  3. Step 3: Cross multiply
    57,980.16x = 86,970.84 × 18,536.40
  4. Step 4: Simplify right side
    57,980.16x = 1,612,126,278.58
  5. Step 5: Solve for x
    x = 1,612,126,278.58/57,980.16
  6. Step 6: Final answer
    x = 27,804.79

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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.