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Finding the Fourth Proportional to 60,499.87, 90,749.60 and 15,521.17

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Solution

The fourth proportional to 60,499.87, 90,749.60 and 15,521.17 is: 23,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,499.87 : 90,749.60 = 15,521.17 : x
  2. Step 2: Convert to fraction form
    60,499.87/90,749.60 = 15,521.17/x
  3. Step 3: Cross multiply
    60,499.87x = 90,749.60 × 15,521.17
  4. Step 4: Simplify right side
    60,499.87x = 1,408,539,969.03
  5. Step 5: Solve for x
    x = 1,408,539,969.03/60,499.87
  6. Step 6: Final answer
    x = 23,281.70

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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.