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Finding the Fourth Proportional to 5,681.55, 8,510.18 and 4,709.55

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Solution

The fourth proportional to 5,681.55, 8,510.18 and 4,709.55 is: 7,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.55 : 8,510.18 = 4,709.55 : x
  2. Step 2: Convert to fraction form
    5,681.55/8,510.18 = 4,709.55/x
  3. Step 3: Cross multiply
    5,681.55x = 8,510.18 × 4,709.55
  4. Step 4: Simplify right side
    5,681.55x = 40,079,094.67
  5. Step 5: Solve for x
    x = 40,079,094.67/5,681.55
  6. Step 6: Final answer
    x = 7,054.25

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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.