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Finding the Fourth Proportional to 67,421, 93,041.02 and 37,613

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Solution

The fourth proportional to 67,421, 93,041.02 and 37,613 is: 51,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,421 : 93,041.02 = 37,613 : x
  2. Step 2: Convert to fraction form
    67,421/93,041.02 = 37,613/x
  3. Step 3: Cross multiply
    67,421x = 93,041.02 × 37,613
  4. Step 4: Simplify right side
    67,421x = 3,499,551,885.26
  5. Step 5: Solve for x
    x = 3,499,551,885.26/67,421
  6. Step 6: Final answer
    x = 51,905.96

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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.