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Finding the Fourth Proportional to 22,999.01, 31,729.64 and 12,925.15

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Solution

The fourth proportional to 22,999.01, 31,729.64 and 12,925.15 is: 17,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.01 : 31,729.64 = 12,925.15 : x
  2. Step 2: Convert to fraction form
    22,999.01/31,729.64 = 12,925.15/x
  3. Step 3: Cross multiply
    22,999.01x = 31,729.64 × 12,925.15
  4. Step 4: Simplify right side
    22,999.01x = 410,110,212.50
  5. Step 5: Solve for x
    x = 410,110,212.50/22,999.01
  6. Step 6: Final answer
    x = 17,831.65

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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.