Home / 19,278.08-26,602.32-12,576.56

Finding the Fourth Proportional to 19,278.08, 26,602.32 and 12,576.56

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Solution

The fourth proportional to 19,278.08, 26,602.32 and 12,576.56 is: 17,354.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.08 : 26,602.32 = 12,576.56 : x
  2. Step 2: Convert to fraction form
    19,278.08/26,602.32 = 12,576.56/x
  3. Step 3: Cross multiply
    19,278.08x = 26,602.32 × 12,576.56
  4. Step 4: Simplify right side
    19,278.08x = 334,565,673.62
  5. Step 5: Solve for x
    x = 334,565,673.62/19,278.08
  6. Step 6: Final answer
    x = 17,354.72

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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.