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Finding the Fourth Proportional to 65,607.32, 90,433.32 and 44,349.68

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Solution

The fourth proportional to 65,607.32, 90,433.32 and 44,349.68 is: 61,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,607.32 : 90,433.32 = 44,349.68 : x
  2. Step 2: Convert to fraction form
    65,607.32/90,433.32 = 44,349.68/x
  3. Step 3: Cross multiply
    65,607.32x = 90,433.32 × 44,349.68
  4. Step 4: Simplify right side
    65,607.32x = 4,010,688,803.34
  5. Step 5: Solve for x
    x = 4,010,688,803.34/65,607.32
  6. Step 6: Final answer
    x = 61,131.73

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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.