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Finding the Fourth Proportional to 64,957.20, 97,403.40 and 29,857.20

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Solution

The fourth proportional to 64,957.20, 97,403.40 and 29,857.20 is: 44,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,957.20 : 97,403.40 = 29,857.20 : x
  2. Step 2: Convert to fraction form
    64,957.20/97,403.40 = 29,857.20/x
  3. Step 3: Cross multiply
    64,957.20x = 97,403.40 × 29,857.20
  4. Step 4: Simplify right side
    64,957.20x = 2,908,192,794.48
  5. Step 5: Solve for x
    x = 2,908,192,794.48/64,957.20
  6. Step 6: Final answer
    x = 44,770.91

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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.