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Finding the Fourth Proportional to 47,127.61, 65,046 and 29,888.79

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Solution

The fourth proportional to 47,127.61, 65,046 and 29,888.79 is: 41,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,127.61 : 65,046 = 29,888.79 : x
  2. Step 2: Convert to fraction form
    47,127.61/65,046 = 29,888.79/x
  3. Step 3: Cross multiply
    47,127.61x = 65,046 × 29,888.79
  4. Step 4: Simplify right side
    47,127.61x = 1,944,146,234.34
  5. Step 5: Solve for x
    x = 1,944,146,234.34/47,127.61
  6. Step 6: Final answer
    x = 41,252.81

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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.