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Finding the Fourth Proportional to 5,308.92, 7,300.08 and 4,718.40

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Solution

The fourth proportional to 5,308.92, 7,300.08 and 4,718.40 is: 6,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.92 : 7,300.08 = 4,718.40 : x
  2. Step 2: Convert to fraction form
    5,308.92/7,300.08 = 4,718.40/x
  3. Step 3: Cross multiply
    5,308.92x = 7,300.08 × 4,718.40
  4. Step 4: Simplify right side
    5,308.92x = 34,444,697.47
  5. Step 5: Solve for x
    x = 34,444,697.47/5,308.92
  6. Step 6: Final answer
    x = 6,488.08

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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.