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Finding the Fourth Proportional to 6,368.70, 9,417.90 and 6,368.70

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Solution

The fourth proportional to 6,368.70, 9,417.90 and 6,368.70 is: 9,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.70 : 9,417.90 = 6,368.70 : x
  2. Step 2: Convert to fraction form
    6,368.70/9,417.90 = 6,368.70/x
  3. Step 3: Cross multiply
    6,368.70x = 9,417.90 × 6,368.70
  4. Step 4: Simplify right side
    6,368.70x = 59,979,779.73
  5. Step 5: Solve for x
    x = 59,979,779.73/6,368.70
  6. Step 6: Final answer
    x = 9,417.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.