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Finding the Fourth Proportional to 6,515.42, 9,762.88 and 5,038.25

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Solution

The fourth proportional to 6,515.42, 9,762.88 and 5,038.25 is: 7,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.42 : 9,762.88 = 5,038.25 : x
  2. Step 2: Convert to fraction form
    6,515.42/9,762.88 = 5,038.25/x
  3. Step 3: Cross multiply
    6,515.42x = 9,762.88 × 5,038.25
  4. Step 4: Simplify right side
    6,515.42x = 49,187,830.16
  5. Step 5: Solve for x
    x = 49,187,830.16/6,515.42
  6. Step 6: Final answer
    x = 7,549.45

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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.