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Finding the Fourth Proportional to 42,602.58, 63,903.88 and 11,437.84

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Solution

The fourth proportional to 42,602.58, 63,903.88 and 11,437.84 is: 17,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,602.58 : 63,903.88 = 11,437.84 : x
  2. Step 2: Convert to fraction form
    42,602.58/63,903.88 = 11,437.84/x
  3. Step 3: Cross multiply
    42,602.58x = 63,903.88 × 11,437.84
  4. Step 4: Simplify right side
    42,602.58x = 730,922,354.82
  5. Step 5: Solve for x
    x = 730,922,354.82/42,602.58
  6. Step 6: Final answer
    x = 17,156.76

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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.