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Finding the Fourth Proportional to 29,335.84, 40,483.76 and 15,907.12

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Solution

The fourth proportional to 29,335.84, 40,483.76 and 15,907.12 is: 21,951.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,335.84 : 40,483.76 = 15,907.12 : x
  2. Step 2: Convert to fraction form
    29,335.84/40,483.76 = 15,907.12/x
  3. Step 3: Cross multiply
    29,335.84x = 40,483.76 × 15,907.12
  4. Step 4: Simplify right side
    29,335.84x = 643,980,028.37
  5. Step 5: Solve for x
    x = 643,980,028.37/29,335.84
  6. Step 6: Final answer
    x = 21,951.99

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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.