Home / 65,989.50-99,000.77-19,242.38

Finding the Fourth Proportional to 65,989.50, 99,000.77 and 19,242.38

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Solution

The fourth proportional to 65,989.50, 99,000.77 and 19,242.38 is: 28,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,989.50 : 99,000.77 = 19,242.38 : x
  2. Step 2: Convert to fraction form
    65,989.50/99,000.77 = 19,242.38/x
  3. Step 3: Cross multiply
    65,989.50x = 99,000.77 × 19,242.38
  4. Step 4: Simplify right side
    65,989.50x = 1,905,009,845.42
  5. Step 5: Solve for x
    x = 1,905,009,845.42/65,989.50
  6. Step 6: Final answer
    x = 28,868.38

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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.