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Finding the Fourth Proportional to 29,422.92, 40,603.71 and 15,994.16

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Solution

The fourth proportional to 29,422.92, 40,603.71 and 15,994.16 is: 22,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.92 : 40,603.71 = 15,994.16 : x
  2. Step 2: Convert to fraction form
    29,422.92/40,603.71 = 15,994.16/x
  3. Step 3: Cross multiply
    29,422.92x = 40,603.71 × 15,994.16
  4. Step 4: Simplify right side
    29,422.92x = 649,422,031.32
  5. Step 5: Solve for x
    x = 649,422,031.32/29,422.92
  6. Step 6: Final answer
    x = 22,071.98

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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.