Home / 42,355.16-63,535.02-11,189.56

Finding the Fourth Proportional to 42,355.16, 63,535.02 and 11,189.56

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Solution

The fourth proportional to 42,355.16, 63,535.02 and 11,189.56 is: 16,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,355.16 : 63,535.02 = 11,189.56 : x
  2. Step 2: Convert to fraction form
    42,355.16/63,535.02 = 11,189.56/x
  3. Step 3: Cross multiply
    42,355.16x = 63,535.02 × 11,189.56
  4. Step 4: Simplify right side
    42,355.16x = 710,928,918.39
  5. Step 5: Solve for x
    x = 710,928,918.39/42,355.16
  6. Step 6: Final answer
    x = 16,784.94

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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.