Home / 66,049.20-99,078.36-26,606.40

Finding the Fourth Proportional to 66,049.20, 99,078.36 and 26,606.40

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Solution

The fourth proportional to 66,049.20, 99,078.36 and 26,606.40 is: 39,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049.20 : 99,078.36 = 26,606.40 : x
  2. Step 2: Convert to fraction form
    66,049.20/99,078.36 = 26,606.40/x
  3. Step 3: Cross multiply
    66,049.20x = 99,078.36 × 26,606.40
  4. Step 4: Simplify right side
    66,049.20x = 2,636,118,477.50
  5. Step 5: Solve for x
    x = 2,636,118,477.50/66,049.20
  6. Step 6: Final answer
    x = 39,911.44

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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.