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Finding the Fourth Proportional to 9,975.16, 14,925.80 and 7,344.61

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Solution

The fourth proportional to 9,975.16, 14,925.80 and 7,344.61 is: 10,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.16 : 14,925.80 = 7,344.61 : x
  2. Step 2: Convert to fraction form
    9,975.16/14,925.80 = 7,344.61/x
  3. Step 3: Cross multiply
    9,975.16x = 14,925.80 × 7,344.61
  4. Step 4: Simplify right side
    9,975.16x = 109,624,068.59
  5. Step 5: Solve for x
    x = 109,624,068.59/9,975.16
  6. Step 6: Final answer
    x = 10,989.71

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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.