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Finding the Fourth Proportional to 64,902.50, 89,561.08 and 37,308.03

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Solution

The fourth proportional to 64,902.50, 89,561.08 and 37,308.03 is: 51,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,902.50 : 89,561.08 = 37,308.03 : x
  2. Step 2: Convert to fraction form
    64,902.50/89,561.08 = 37,308.03/x
  3. Step 3: Cross multiply
    64,902.50x = 89,561.08 × 37,308.03
  4. Step 4: Simplify right side
    64,902.50x = 3,341,347,459.47
  5. Step 5: Solve for x
    x = 3,341,347,459.47/64,902.50
  6. Step 6: Final answer
    x = 51,482.57

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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.