Home / 26,528.96-39,790.40-9,889.53

Finding the Fourth Proportional to 26,528.96, 39,790.40 and 9,889.53

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Solution

The fourth proportional to 26,528.96, 39,790.40 and 9,889.53 is: 14,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,528.96 : 39,790.40 = 9,889.53 : x
  2. Step 2: Convert to fraction form
    26,528.96/39,790.40 = 9,889.53/x
  3. Step 3: Cross multiply
    26,528.96x = 39,790.40 × 9,889.53
  4. Step 4: Simplify right side
    26,528.96x = 393,508,330.67
  5. Step 5: Solve for x
    x = 393,508,330.67/26,528.96
  6. Step 6: Final answer
    x = 14,833.16

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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.