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Finding the Fourth Proportional to 32,118.42, 48,153.52 and 9,918.74

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Solution

The fourth proportional to 32,118.42, 48,153.52 and 9,918.74 is: 14,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,118.42 : 48,153.52 = 9,918.74 : x
  2. Step 2: Convert to fraction form
    32,118.42/48,153.52 = 9,918.74/x
  3. Step 3: Cross multiply
    32,118.42x = 48,153.52 × 9,918.74
  4. Step 4: Simplify right side
    32,118.42x = 477,622,244.96
  5. Step 5: Solve for x
    x = 477,622,244.96/32,118.42
  6. Step 6: Final answer
    x = 14,870.66

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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.