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Finding the Fourth Proportional to 75,386.59, 113,080.76 and 19,226.59

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Solution

The fourth proportional to 75,386.59, 113,080.76 and 19,226.59 is: 28,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,386.59 : 113,080.76 = 19,226.59 : x
  2. Step 2: Convert to fraction form
    75,386.59/113,080.76 = 19,226.59/x
  3. Step 3: Cross multiply
    75,386.59x = 113,080.76 × 19,226.59
  4. Step 4: Simplify right side
    75,386.59x = 2,174,157,409.41
  5. Step 5: Solve for x
    x = 2,174,157,409.41/75,386.59
  6. Step 6: Final answer
    x = 28,840.11

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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.