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Finding the Fourth Proportional to 34,888.76, 48,164.88 and 28,007.90

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Solution

The fourth proportional to 34,888.76, 48,164.88 and 28,007.90 is: 38,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,888.76 : 48,164.88 = 28,007.90 : x
  2. Step 2: Convert to fraction form
    34,888.76/48,164.88 = 28,007.90/x
  3. Step 3: Cross multiply
    34,888.76x = 48,164.88 × 28,007.90
  4. Step 4: Simplify right side
    34,888.76x = 1,348,997,142.55
  5. Step 5: Solve for x
    x = 1,348,997,142.55/34,888.76
  6. Step 6: Final answer
    x = 38,665.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.