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Finding the Fourth Proportional to 12,368.61, 17,068.89 and 6,703.47

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Solution

The fourth proportional to 12,368.61, 17,068.89 and 6,703.47 is: 9,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.61 : 17,068.89 = 6,703.47 : x
  2. Step 2: Convert to fraction form
    12,368.61/17,068.89 = 6,703.47/x
  3. Step 3: Cross multiply
    12,368.61x = 17,068.89 × 6,703.47
  4. Step 4: Simplify right side
    12,368.61x = 114,420,792.05
  5. Step 5: Solve for x
    x = 114,420,792.05/12,368.61
  6. Step 6: Final answer
    x = 9,250.90

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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.