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Finding the Fourth Proportional to 9,955.68, 14,935.68 and 3,030

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Solution

The fourth proportional to 9,955.68, 14,935.68 and 3,030 is: 4,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.68 : 14,935.68 = 3,030 : x
  2. Step 2: Convert to fraction form
    9,955.68/14,935.68 = 3,030/x
  3. Step 3: Cross multiply
    9,955.68x = 14,935.68 × 3,030
  4. Step 4: Simplify right side
    9,955.68x = 45,255,110.40
  5. Step 5: Solve for x
    x = 45,255,110.40/9,955.68
  6. Step 6: Final answer
    x = 4,545.66

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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.