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Finding the Fourth Proportional to 7,641.93, 10,547.74 and 4,659.41

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Solution

The fourth proportional to 7,641.93, 10,547.74 and 4,659.41 is: 6,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.93 : 10,547.74 = 4,659.41 : x
  2. Step 2: Convert to fraction form
    7,641.93/10,547.74 = 4,659.41/x
  3. Step 3: Cross multiply
    7,641.93x = 10,547.74 × 4,659.41
  4. Step 4: Simplify right side
    7,641.93x = 49,146,207.22
  5. Step 5: Solve for x
    x = 49,146,207.22/7,641.93
  6. Step 6: Final answer
    x = 6,431.13

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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.