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Finding the Fourth Proportional to 31,666.08, 47,484.48 and 17,815.08

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Solution

The fourth proportional to 31,666.08, 47,484.48 and 17,815.08 is: 26,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,666.08 : 47,484.48 = 17,815.08 : x
  2. Step 2: Convert to fraction form
    31,666.08/47,484.48 = 17,815.08/x
  3. Step 3: Cross multiply
    31,666.08x = 47,484.48 × 17,815.08
  4. Step 4: Simplify right side
    31,666.08x = 845,939,809.96
  5. Step 5: Solve for x
    x = 845,939,809.96/31,666.08
  6. Step 6: Final answer
    x = 26,714.38

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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.