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Finding the Fourth Proportional to 60,483.76, 90,751.58 and 21,019.32

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Solution

The fourth proportional to 60,483.76, 90,751.58 and 21,019.32 is: 31,537.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,483.76 : 90,751.58 = 21,019.32 : x
  2. Step 2: Convert to fraction form
    60,483.76/90,751.58 = 21,019.32/x
  3. Step 3: Cross multiply
    60,483.76x = 90,751.58 × 21,019.32
  4. Step 4: Simplify right side
    60,483.76x = 1,907,536,500.53
  5. Step 5: Solve for x
    x = 1,907,536,500.53/60,483.76
  6. Step 6: Final answer
    x = 31,537.99

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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.