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Finding the Fourth Proportional to 63,852.47, 88,118.69 and 39,666.68

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Solution

The fourth proportional to 63,852.47, 88,118.69 and 39,666.68 is: 54,741.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,852.47 : 88,118.69 = 39,666.68 : x
  2. Step 2: Convert to fraction form
    63,852.47/88,118.69 = 39,666.68/x
  3. Step 3: Cross multiply
    63,852.47x = 88,118.69 × 39,666.68
  4. Step 4: Simplify right side
    63,852.47x = 3,495,375,900.21
  5. Step 5: Solve for x
    x = 3,495,375,900.21/63,852.47
  6. Step 6: Final answer
    x = 54,741.43

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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.