Home / 34,282.56-47,308.64-19,378.88

Finding the Fourth Proportional to 34,282.56, 47,308.64 and 19,378.88

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Solution

The fourth proportional to 34,282.56, 47,308.64 and 19,378.88 is: 26,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,282.56 : 47,308.64 = 19,378.88 : x
  2. Step 2: Convert to fraction form
    34,282.56/47,308.64 = 19,378.88/x
  3. Step 3: Cross multiply
    34,282.56x = 47,308.64 × 19,378.88
  4. Step 4: Simplify right side
    34,282.56x = 916,788,457.52
  5. Step 5: Solve for x
    x = 916,788,457.52/34,282.56
  6. Step 6: Final answer
    x = 26,742.12

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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.