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Finding the Fourth Proportional to 6,567.52, 9,061.68 and 3,915.76

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Solution

The fourth proportional to 6,567.52, 9,061.68 and 3,915.76 is: 5,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,567.52 : 9,061.68 = 3,915.76 : x
  2. Step 2: Convert to fraction form
    6,567.52/9,061.68 = 3,915.76/x
  3. Step 3: Cross multiply
    6,567.52x = 9,061.68 × 3,915.76
  4. Step 4: Simplify right side
    6,567.52x = 35,483,364.08
  5. Step 5: Solve for x
    x = 35,483,364.08/6,567.52
  6. Step 6: Final answer
    x = 5,402.86

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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.