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Finding the Fourth Proportional to 7,565.89, 10,440.95 and 4,208.92

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Solution

The fourth proportional to 7,565.89, 10,440.95 and 4,208.92 is: 5,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.89 : 10,440.95 = 4,208.92 : x
  2. Step 2: Convert to fraction form
    7,565.89/10,440.95 = 4,208.92/x
  3. Step 3: Cross multiply
    7,565.89x = 10,440.95 × 4,208.92
  4. Step 4: Simplify right side
    7,565.89x = 43,945,123.27
  5. Step 5: Solve for x
    x = 43,945,123.27/7,565.89
  6. Step 6: Final answer
    x = 5,808.32

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Half scale
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Double scale
Find fourth proportional to 7,566.89, 10,442.33 and 4,209.92
Similar ratio
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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.