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Finding the Fourth Proportional to 63,225.68, 87,212.88 and 40,557.04

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Solution

The fourth proportional to 63,225.68, 87,212.88 and 40,557.04 is: 55,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,225.68 : 87,212.88 = 40,557.04 : x
  2. Step 2: Convert to fraction form
    63,225.68/87,212.88 = 40,557.04/x
  3. Step 3: Cross multiply
    63,225.68x = 87,212.88 × 40,557.04
  4. Step 4: Simplify right side
    63,225.68x = 3,537,096,262.68
  5. Step 5: Solve for x
    x = 3,537,096,262.68/63,225.68
  6. Step 6: Final answer
    x = 55,943.98

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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.