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Finding the Fourth Proportional to 42,459.84, 63,711.84 and 23,728.32

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Solution

The fourth proportional to 42,459.84, 63,711.84 and 23,728.32 is: 35,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.84 : 63,711.84 = 23,728.32 : x
  2. Step 2: Convert to fraction form
    42,459.84/63,711.84 = 23,728.32/x
  3. Step 3: Cross multiply
    42,459.84x = 63,711.84 × 23,728.32
  4. Step 4: Simplify right side
    42,459.84x = 1,511,774,927.31
  5. Step 5: Solve for x
    x = 1,511,774,927.31/42,459.84
  6. Step 6: Final answer
    x = 35,604.82

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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.