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Finding the Fourth Proportional to 64,688.64, 97,066.20 and 26,766.08

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Solution

The fourth proportional to 64,688.64, 97,066.20 and 26,766.08 is: 40,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,688.64 : 97,066.20 = 26,766.08 : x
  2. Step 2: Convert to fraction form
    64,688.64/97,066.20 = 26,766.08/x
  3. Step 3: Cross multiply
    64,688.64x = 97,066.20 × 26,766.08
  4. Step 4: Simplify right side
    64,688.64x = 2,598,081,674.50
  5. Step 5: Solve for x
    x = 2,598,081,674.50/64,688.64
  6. Step 6: Final answer
    x = 40,162.87

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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.