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Finding the Third Proportional to 64,985 and 97,957.50

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Solution

The third proportional to 64,985 and 97,957.50 is: 147,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985 : 97,957.50 = 97,957.50 : x
  2. Step 2: Convert to fraction form
    64,985/97,957.50 = 97,957.50/x
  3. Step 3: Cross multiply
    64,985x = 97,957.50 × 97,957.50
  4. Step 4: Simplify right side
    64,985x = 9,595,671,806.25
  5. Step 5: Solve for x
    x = 9,595,671,806.25/64,985
  6. Step 6: Final answer
    x = 147,659.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.