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Finding the Fourth Proportional to 5,275.71, 7,913.66 and 4,347.63

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Solution

The fourth proportional to 5,275.71, 7,913.66 and 4,347.63 is: 6,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.71 : 7,913.66 = 4,347.63 : x
  2. Step 2: Convert to fraction form
    5,275.71/7,913.66 = 4,347.63/x
  3. Step 3: Cross multiply
    5,275.71x = 7,913.66 × 4,347.63
  4. Step 4: Simplify right side
    5,275.71x = 34,405,643.89
  5. Step 5: Solve for x
    x = 34,405,643.89/5,275.71
  6. Step 6: Final answer
    x = 6,521.52

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1.5x scale

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.