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Finding the Fourth Proportional to 7,158.26, 9,885.90 and 4,925.90

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Solution

The fourth proportional to 7,158.26, 9,885.90 and 4,925.90 is: 6,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.26 : 9,885.90 = 4,925.90 : x
  2. Step 2: Convert to fraction form
    7,158.26/9,885.90 = 4,925.90/x
  3. Step 3: Cross multiply
    7,158.26x = 9,885.90 × 4,925.90
  4. Step 4: Simplify right side
    7,158.26x = 48,696,905.38
  5. Step 5: Solve for x
    x = 48,696,905.38/7,158.26
  6. Step 6: Final answer
    x = 6,802.90

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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.