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Finding the Fourth Proportional to 34,603.46, 47,742.90 and 19,490.84

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Solution

The fourth proportional to 34,603.46, 47,742.90 and 19,490.84 is: 26,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,603.46 : 47,742.90 = 19,490.84 : x
  2. Step 2: Convert to fraction form
    34,603.46/47,742.90 = 19,490.84/x
  3. Step 3: Cross multiply
    34,603.46x = 47,742.90 × 19,490.84
  4. Step 4: Simplify right side
    34,603.46x = 930,549,225.04
  5. Step 5: Solve for x
    x = 930,549,225.04/34,603.46
  6. Step 6: Final answer
    x = 26,891.80

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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.