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Finding the Fourth Proportional to 7,352.64, 10,148.64 and 4,330.40

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Solution

The fourth proportional to 7,352.64, 10,148.64 and 4,330.40 is: 5,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.64 : 10,148.64 = 4,330.40 : x
  2. Step 2: Convert to fraction form
    7,352.64/10,148.64 = 4,330.40/x
  3. Step 3: Cross multiply
    7,352.64x = 10,148.64 × 4,330.40
  4. Step 4: Simplify right side
    7,352.64x = 43,947,670.66
  5. Step 5: Solve for x
    x = 43,947,670.66/7,352.64
  6. Step 6: Final answer
    x = 5,977.13

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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.