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Finding the Fourth Proportional to 64,219.66, 88,658.76 and 38,732.45

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Solution

The fourth proportional to 64,219.66, 88,658.76 and 38,732.45 is: 53,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,219.66 : 88,658.76 = 38,732.45 : x
  2. Step 2: Convert to fraction form
    64,219.66/88,658.76 = 38,732.45/x
  3. Step 3: Cross multiply
    64,219.66x = 88,658.76 × 38,732.45
  4. Step 4: Simplify right side
    64,219.66x = 3,433,971,210.41
  5. Step 5: Solve for x
    x = 3,433,971,210.41/64,219.66
  6. Step 6: Final answer
    x = 53,472.27

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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.