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Finding the Fourth Proportional to 64,710.63, 97,059.53 and 20,336.20

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Solution

The fourth proportional to 64,710.63, 97,059.53 and 20,336.20 is: 30,502.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.63 : 97,059.53 = 20,336.20 : x
  2. Step 2: Convert to fraction form
    64,710.63/97,059.53 = 20,336.20/x
  3. Step 3: Cross multiply
    64,710.63x = 97,059.53 × 20,336.20
  4. Step 4: Simplify right side
    64,710.63x = 1,973,821,822.18
  5. Step 5: Solve for x
    x = 1,973,821,822.18/64,710.63
  6. Step 6: Final answer
    x = 30,502.28

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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.