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Finding the Fourth Proportional to 9,368.35, 12,931.10 and 5,392.26

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Solution

The fourth proportional to 9,368.35, 12,931.10 and 5,392.26 is: 7,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.35 : 12,931.10 = 5,392.26 : x
  2. Step 2: Convert to fraction form
    9,368.35/12,931.10 = 5,392.26/x
  3. Step 3: Cross multiply
    9,368.35x = 12,931.10 × 5,392.26
  4. Step 4: Simplify right side
    9,368.35x = 69,727,853.29
  5. Step 5: Solve for x
    x = 69,727,853.29/9,368.35
  6. Step 6: Final answer
    x = 7,442.92

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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.