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Finding the Fourth Proportional to 7,030.18, 9,702.18 and 3,886.92

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Solution

The fourth proportional to 7,030.18, 9,702.18 and 3,886.92 is: 5,364.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.18 : 9,702.18 = 3,886.92 : x
  2. Step 2: Convert to fraction form
    7,030.18/9,702.18 = 3,886.92/x
  3. Step 3: Cross multiply
    7,030.18x = 9,702.18 × 3,886.92
  4. Step 4: Simplify right side
    7,030.18x = 37,711,597.49
  5. Step 5: Solve for x
    x = 37,711,597.49/7,030.18
  6. Step 6: Final answer
    x = 5,364.24

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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.