Home / 61,091.04-91,603.20-18,390.24

Finding the Fourth Proportional to 61,091.04, 91,603.20 and 18,390.24

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Solution

The fourth proportional to 61,091.04, 91,603.20 and 18,390.24 is: 27,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,091.04 : 91,603.20 = 18,390.24 : x
  2. Step 2: Convert to fraction form
    61,091.04/91,603.20 = 18,390.24/x
  3. Step 3: Cross multiply
    61,091.04x = 91,603.20 × 18,390.24
  4. Step 4: Simplify right side
    61,091.04x = 1,684,604,832.77
  5. Step 5: Solve for x
    x = 1,684,604,832.77/61,091.04
  6. Step 6: Final answer
    x = 27,575.32

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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.