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Finding the Fourth Proportional to 64,301.80, 88,722.10 and 38,812.32

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Solution

The fourth proportional to 64,301.80, 88,722.10 and 38,812.32 is: 53,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,301.80 : 88,722.10 = 38,812.32 : x
  2. Step 2: Convert to fraction form
    64,301.80/88,722.10 = 38,812.32/x
  3. Step 3: Cross multiply
    64,301.80x = 88,722.10 × 38,812.32
  4. Step 4: Simplify right side
    64,301.80x = 3,443,510,536.27
  5. Step 5: Solve for x
    x = 3,443,510,536.27/64,301.80
  6. Step 6: Final answer
    x = 53,552.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.