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Finding the Fourth Proportional to 9,885.12, 14,831.04 and 9,848.64

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Solution

The fourth proportional to 9,885.12, 14,831.04 and 9,848.64 is: 14,776.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.12 : 14,831.04 = 9,848.64 : x
  2. Step 2: Convert to fraction form
    9,885.12/14,831.04 = 9,848.64/x
  3. Step 3: Cross multiply
    9,885.12x = 14,831.04 × 9,848.64
  4. Step 4: Simplify right side
    9,885.12x = 146,065,573.79
  5. Step 5: Solve for x
    x = 146,065,573.79/9,885.12
  6. Step 6: Final answer
    x = 14,776.31

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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.