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Finding the Fourth Proportional to 9,912.61, 14,792.32 and 8,808.19

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Solution

The fourth proportional to 9,912.61, 14,792.32 and 8,808.19 is: 13,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.61 : 14,792.32 = 8,808.19 : x
  2. Step 2: Convert to fraction form
    9,912.61/14,792.32 = 8,808.19/x
  3. Step 3: Cross multiply
    9,912.61x = 14,792.32 × 8,808.19
  4. Step 4: Simplify right side
    9,912.61x = 130,293,565.10
  5. Step 5: Solve for x
    x = 130,293,565.10/9,912.61
  6. Step 6: Final answer
    x = 13,144.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.