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Finding the Fourth Proportional to 7,398.02, 10,188.53 and 7,374.95

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Solution

The fourth proportional to 7,398.02, 10,188.53 and 7,374.95 is: 10,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.02 : 10,188.53 = 7,374.95 : x
  2. Step 2: Convert to fraction form
    7,398.02/10,188.53 = 7,374.95/x
  3. Step 3: Cross multiply
    7,398.02x = 10,188.53 × 7,374.95
  4. Step 4: Simplify right side
    7,398.02x = 75,139,887.92
  5. Step 5: Solve for x
    x = 75,139,887.92/7,398.02
  6. Step 6: Final answer
    x = 10,156.75

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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.