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Finding the Fourth Proportional to 22,695.94, 31,319.94 and 12,624.16

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Solution

The fourth proportional to 22,695.94, 31,319.94 and 12,624.16 is: 17,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.94 : 31,319.94 = 12,624.16 : x
  2. Step 2: Convert to fraction form
    22,695.94/31,319.94 = 12,624.16/x
  3. Step 3: Cross multiply
    22,695.94x = 31,319.94 × 12,624.16
  4. Step 4: Simplify right side
    22,695.94x = 395,387,714.03
  5. Step 5: Solve for x
    x = 395,387,714.03/22,695.94
  6. Step 6: Final answer
    x = 17,421.08

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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.