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Finding the Fourth Proportional to 7,360.55, 10,156.78 and 4,375.99

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Solution

The fourth proportional to 7,360.55, 10,156.78 and 4,375.99 is: 6,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360.55 : 10,156.78 = 4,375.99 : x
  2. Step 2: Convert to fraction form
    7,360.55/10,156.78 = 4,375.99/x
  3. Step 3: Cross multiply
    7,360.55x = 10,156.78 × 4,375.99
  4. Step 4: Simplify right side
    7,360.55x = 44,445,967.71
  5. Step 5: Solve for x
    x = 44,445,967.71/7,360.55
  6. Step 6: Final answer
    x = 6,038.40

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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.