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Finding the Fourth Proportional to 7,038.75, 9,707.51 and 4,346.72

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Solution

The fourth proportional to 7,038.75, 9,707.51 and 4,346.72 is: 5,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.75 : 9,707.51 = 4,346.72 : x
  2. Step 2: Convert to fraction form
    7,038.75/9,707.51 = 4,346.72/x
  3. Step 3: Cross multiply
    7,038.75x = 9,707.51 × 4,346.72
  4. Step 4: Simplify right side
    7,038.75x = 42,195,827.87
  5. Step 5: Solve for x
    x = 42,195,827.87/7,038.75
  6. Step 6: Final answer
    x = 5,994.79

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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.