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Finding the Fourth Proportional to 7,953.93, 10,971.45 and 5,681.07

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Solution

The fourth proportional to 7,953.93, 10,971.45 and 5,681.07 is: 7,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.93 : 10,971.45 = 5,681.07 : x
  2. Step 2: Convert to fraction form
    7,953.93/10,971.45 = 5,681.07/x
  3. Step 3: Cross multiply
    7,953.93x = 10,971.45 × 5,681.07
  4. Step 4: Simplify right side
    7,953.93x = 62,329,575.45
  5. Step 5: Solve for x
    x = 62,329,575.45/7,953.93
  6. Step 6: Final answer
    x = 7,836.32

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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.