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Finding the Fourth Proportional to 46,763.84, 70,146.48 and 13,486.88

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Solution

The fourth proportional to 46,763.84, 70,146.48 and 13,486.88 is: 20,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,763.84 : 70,146.48 = 13,486.88 : x
  2. Step 2: Convert to fraction form
    46,763.84/70,146.48 = 13,486.88/x
  3. Step 3: Cross multiply
    46,763.84x = 70,146.48 × 13,486.88
  4. Step 4: Simplify right side
    46,763.84x = 946,057,158.18
  5. Step 5: Solve for x
    x = 946,057,158.18/46,763.84
  6. Step 6: Final answer
    x = 20,230.53

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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.