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Finding the Fourth Proportional to 70,714.04, 106,071.12 and 18,124.04

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Solution

The fourth proportional to 70,714.04, 106,071.12 and 18,124.04 is: 27,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,714.04 : 106,071.12 = 18,124.04 : x
  2. Step 2: Convert to fraction form
    70,714.04/106,071.12 = 18,124.04/x
  3. Step 3: Cross multiply
    70,714.04x = 106,071.12 × 18,124.04
  4. Step 4: Simplify right side
    70,714.04x = 1,922,437,221.72
  5. Step 5: Solve for x
    x = 1,922,437,221.72/70,714.04
  6. Step 6: Final answer
    x = 27,186.08

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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.