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Finding the Fourth Proportional to 64,998.36, 97,501.01 and 20,628.59

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Solution

The fourth proportional to 64,998.36, 97,501.01 and 20,628.59 is: 30,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.36 : 97,501.01 = 20,628.59 : x
  2. Step 2: Convert to fraction form
    64,998.36/97,501.01 = 20,628.59/x
  3. Step 3: Cross multiply
    64,998.36x = 97,501.01 × 20,628.59
  4. Step 4: Simplify right side
    64,998.36x = 2,011,307,769.23
  5. Step 5: Solve for x
    x = 2,011,307,769.23/64,998.36
  6. Step 6: Final answer
    x = 30,943.98

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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.