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Finding the Fourth Proportional to 30,005.70, 44,986.95 and 16,862.10

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Solution

The fourth proportional to 30,005.70, 44,986.95 and 16,862.10 is: 25,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.70 : 44,986.95 = 16,862.10 : x
  2. Step 2: Convert to fraction form
    30,005.70/44,986.95 = 16,862.10/x
  3. Step 3: Cross multiply
    30,005.70x = 44,986.95 × 16,862.10
  4. Step 4: Simplify right side
    30,005.70x = 758,574,449.60
  5. Step 5: Solve for x
    x = 758,574,449.60/30,005.70
  6. Step 6: Final answer
    x = 25,281.01

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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.