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Finding the Fourth Proportional to 14,152.40, 19,533.02 and 9,372.40

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Solution

The fourth proportional to 14,152.40, 19,533.02 and 9,372.40 is: 12,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.40 : 19,533.02 = 9,372.40 : x
  2. Step 2: Convert to fraction form
    14,152.40/19,533.02 = 9,372.40/x
  3. Step 3: Cross multiply
    14,152.40x = 19,533.02 × 9,372.40
  4. Step 4: Simplify right side
    14,152.40x = 183,071,276.65
  5. Step 5: Solve for x
    x = 183,071,276.65/14,152.40
  6. Step 6: Final answer
    x = 12,935.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.