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Finding the Fourth Proportional to 67,421.80, 101,205.60 and 37,897.30

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Solution

The fourth proportional to 67,421.80, 101,205.60 and 37,897.30 is: 56,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,421.80 : 101,205.60 = 37,897.30 : x
  2. Step 2: Convert to fraction form
    67,421.80/101,205.60 = 37,897.30/x
  3. Step 3: Cross multiply
    67,421.80x = 101,205.60 × 37,897.30
  4. Step 4: Simplify right side
    67,421.80x = 3,835,418,984.88
  5. Step 5: Solve for x
    x = 3,835,418,984.88/67,421.80
  6. Step 6: Final answer
    x = 56,886.93

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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.