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Finding the Fourth Proportional to 4,895.55, 7,345.85 and 2,430.32

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Solution

The fourth proportional to 4,895.55, 7,345.85 and 2,430.32 is: 3,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.55 : 7,345.85 = 2,430.32 : x
  2. Step 2: Convert to fraction form
    4,895.55/7,345.85 = 2,430.32/x
  3. Step 3: Cross multiply
    4,895.55x = 7,345.85 × 2,430.32
  4. Step 4: Simplify right side
    4,895.55x = 17,852,717.29
  5. Step 5: Solve for x
    x = 17,852,717.29/4,895.55
  6. Step 6: Final answer
    x = 3,646.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.