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Finding the Fourth Proportional to 7,056.68, 9,724.02 and 5,275.40

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Solution

The fourth proportional to 7,056.68, 9,724.02 and 5,275.40 is: 7,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056.68 : 9,724.02 = 5,275.40 : x
  2. Step 2: Convert to fraction form
    7,056.68/9,724.02 = 5,275.40/x
  3. Step 3: Cross multiply
    7,056.68x = 9,724.02 × 5,275.40
  4. Step 4: Simplify right side
    7,056.68x = 51,298,095.11
  5. Step 5: Solve for x
    x = 51,298,095.11/7,056.68
  6. Step 6: Final answer
    x = 7,269.44

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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.