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Finding the Fourth Proportional to 6,867.18, 9,482.47 and 5,106.65

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Solution

The fourth proportional to 6,867.18, 9,482.47 and 5,106.65 is: 7,051.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.18 : 9,482.47 = 5,106.65 : x
  2. Step 2: Convert to fraction form
    6,867.18/9,482.47 = 5,106.65/x
  3. Step 3: Cross multiply
    6,867.18x = 9,482.47 × 5,106.65
  4. Step 4: Simplify right side
    6,867.18x = 48,423,595.25
  5. Step 5: Solve for x
    x = 48,423,595.25/6,867.18
  6. Step 6: Final answer
    x = 7,051.45

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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.