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Finding the Fourth Proportional to 39,119.84, 58,653.84 and 14,156.64

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Solution

The fourth proportional to 39,119.84, 58,653.84 and 14,156.64 is: 21,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.84 : 58,653.84 = 14,156.64 : x
  2. Step 2: Convert to fraction form
    39,119.84/58,653.84 = 14,156.64/x
  3. Step 3: Cross multiply
    39,119.84x = 58,653.84 × 14,156.64
  4. Step 4: Simplify right side
    39,119.84x = 830,341,270.95
  5. Step 5: Solve for x
    x = 830,341,270.95/39,119.84
  6. Step 6: Final answer
    x = 21,225.58

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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.