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Finding the Fourth Proportional to 64,859.54, 97,289.58 and 18,112.28

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Solution

The fourth proportional to 64,859.54, 97,289.58 and 18,112.28 is: 27,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859.54 : 97,289.58 = 18,112.28 : x
  2. Step 2: Convert to fraction form
    64,859.54/97,289.58 = 18,112.28/x
  3. Step 3: Cross multiply
    64,859.54x = 97,289.58 × 18,112.28
  4. Step 4: Simplify right side
    64,859.54x = 1,762,136,114.04
  5. Step 5: Solve for x
    x = 1,762,136,114.04/64,859.54
  6. Step 6: Final answer
    x = 27,168.50

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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.