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Finding the Fourth Proportional to 64,708.54, 97,063.42 and 20,334.30

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Solution

The fourth proportional to 64,708.54, 97,063.42 and 20,334.30 is: 30,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.54 : 97,063.42 = 20,334.30 : x
  2. Step 2: Convert to fraction form
    64,708.54/97,063.42 = 20,334.30/x
  3. Step 3: Cross multiply
    64,708.54x = 97,063.42 × 20,334.30
  4. Step 4: Simplify right side
    64,708.54x = 1,973,716,701.31
  5. Step 5: Solve for x
    x = 1,973,716,701.31/64,708.54
  6. Step 6: Final answer
    x = 30,501.64

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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.