Home / 19,591.25-29,386.81-7,111.26

Finding the Fourth Proportional to 19,591.25, 29,386.81 and 7,111.26

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Solution

The fourth proportional to 19,591.25, 29,386.81 and 7,111.26 is: 10,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.25 : 29,386.81 = 7,111.26 : x
  2. Step 2: Convert to fraction form
    19,591.25/29,386.81 = 7,111.26/x
  3. Step 3: Cross multiply
    19,591.25x = 29,386.81 × 7,111.26
  4. Step 4: Simplify right side
    19,591.25x = 208,977,246.48
  5. Step 5: Solve for x
    x = 208,977,246.48/19,591.25
  6. Step 6: Final answer
    x = 10,666.87

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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.