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Finding the Fourth Proportional to 14,374.16, 19,836.64 and 8,410.16

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Solution

The fourth proportional to 14,374.16, 19,836.64 and 8,410.16 is: 11,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,374.16 : 19,836.64 = 8,410.16 : x
  2. Step 2: Convert to fraction form
    14,374.16/19,836.64 = 8,410.16/x
  3. Step 3: Cross multiply
    14,374.16x = 19,836.64 × 8,410.16
  4. Step 4: Simplify right side
    14,374.16x = 166,829,316.26
  5. Step 5: Solve for x
    x = 166,829,316.26/14,374.16
  6. Step 6: Final answer
    x = 11,606.20

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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.