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Finding the Fourth Proportional to 55,714.40, 83,498.70 and 22,407.20

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Solution

The fourth proportional to 55,714.40, 83,498.70 and 22,407.20 is: 33,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,714.40 : 83,498.70 = 22,407.20 : x
  2. Step 2: Convert to fraction form
    55,714.40/83,498.70 = 22,407.20/x
  3. Step 3: Cross multiply
    55,714.40x = 83,498.70 × 22,407.20
  4. Step 4: Simplify right side
    55,714.40x = 1,870,972,070.64
  5. Step 5: Solve for x
    x = 1,870,972,070.64/55,714.40
  6. Step 6: Final answer
    x = 33,581.48

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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.