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Finding the Fourth Proportional to 12,248.56, 16,903.08 and 7,213

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Solution

The fourth proportional to 12,248.56, 16,903.08 and 7,213 is: 9,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.56 : 16,903.08 = 7,213 : x
  2. Step 2: Convert to fraction form
    12,248.56/16,903.08 = 7,213/x
  3. Step 3: Cross multiply
    12,248.56x = 16,903.08 × 7,213
  4. Step 4: Simplify right side
    12,248.56x = 121,921,916.04
  5. Step 5: Solve for x
    x = 121,921,916.04/12,248.56
  6. Step 6: Final answer
    x = 9,953.98

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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.