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Finding the Fourth Proportional to 77,642.28, 116,492.11 and 33,303.58

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Solution

The fourth proportional to 77,642.28, 116,492.11 and 33,303.58 is: 49,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,642.28 : 116,492.11 = 33,303.58 : x
  2. Step 2: Convert to fraction form
    77,642.28/116,492.11 = 33,303.58/x
  3. Step 3: Cross multiply
    77,642.28x = 116,492.11 × 33,303.58
  4. Step 4: Simplify right side
    77,642.28x = 3,879,603,930.26
  5. Step 5: Solve for x
    x = 3,879,603,930.26/77,642.28
  6. Step 6: Final answer
    x = 49,967.67

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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.