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Finding the Fourth Proportional to 6,307.90, 8,707.57 and 4,492.08

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Solution

The fourth proportional to 6,307.90, 8,707.57 and 4,492.08 is: 6,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.90 : 8,707.57 = 4,492.08 : x
  2. Step 2: Convert to fraction form
    6,307.90/8,707.57 = 4,492.08/x
  3. Step 3: Cross multiply
    6,307.90x = 8,707.57 × 4,492.08
  4. Step 4: Simplify right side
    6,307.90x = 39,115,089.82
  5. Step 5: Solve for x
    x = 39,115,089.82/6,307.90
  6. Step 6: Final answer
    x = 6,200.97

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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.