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Finding the Fourth Proportional to 7,681.90, 10,598.25 and 5,030.82

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Solution

The fourth proportional to 7,681.90, 10,598.25 and 5,030.82 is: 6,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.90 : 10,598.25 = 5,030.82 : x
  2. Step 2: Convert to fraction form
    7,681.90/10,598.25 = 5,030.82/x
  3. Step 3: Cross multiply
    7,681.90x = 10,598.25 × 5,030.82
  4. Step 4: Simplify right side
    7,681.90x = 53,317,888.07
  5. Step 5: Solve for x
    x = 53,317,888.07/7,681.90
  6. Step 6: Final answer
    x = 6,940.72

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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.