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Finding the Fourth Proportional to 64,814.50, 97,221.76 and 15,566.50

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Solution

The fourth proportional to 64,814.50, 97,221.76 and 15,566.50 is: 23,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,814.50 : 97,221.76 = 15,566.50 : x
  2. Step 2: Convert to fraction form
    64,814.50/97,221.76 = 15,566.50/x
  3. Step 3: Cross multiply
    64,814.50x = 97,221.76 × 15,566.50
  4. Step 4: Simplify right side
    64,814.50x = 1,513,402,527.04
  5. Step 5: Solve for x
    x = 1,513,402,527.04/64,814.50
  6. Step 6: Final answer
    x = 23,349.75

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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.