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Finding the Fourth Proportional to 88,931.70, 133,385.40 and 26,602.20

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Solution

The fourth proportional to 88,931.70, 133,385.40 and 26,602.20 is: 39,899.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,931.70 : 133,385.40 = 26,602.20 : x
  2. Step 2: Convert to fraction form
    88,931.70/133,385.40 = 26,602.20/x
  3. Step 3: Cross multiply
    88,931.70x = 133,385.40 × 26,602.20
  4. Step 4: Simplify right side
    88,931.70x = 3,548,345,087.88
  5. Step 5: Solve for x
    x = 3,548,345,087.88/88,931.70
  6. Step 6: Final answer
    x = 39,899.67

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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.