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Finding the Fourth Proportional to 9,868.15, 14,802.90 and 3,113.11

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Solution

The fourth proportional to 9,868.15, 14,802.90 and 3,113.11 is: 4,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.15 : 14,802.90 = 3,113.11 : x
  2. Step 2: Convert to fraction form
    9,868.15/14,802.90 = 3,113.11/x
  3. Step 3: Cross multiply
    9,868.15x = 14,802.90 × 3,113.11
  4. Step 4: Simplify right side
    9,868.15x = 46,083,056.02
  5. Step 5: Solve for x
    x = 46,083,056.02/9,868.15
  6. Step 6: Final answer
    x = 4,669.88

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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.