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Finding the Fourth Proportional to 7,658.19, 10,570.95 and 4,830.30

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Solution

The fourth proportional to 7,658.19, 10,570.95 and 4,830.30 is: 6,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.19 : 10,570.95 = 4,830.30 : x
  2. Step 2: Convert to fraction form
    7,658.19/10,570.95 = 4,830.30/x
  3. Step 3: Cross multiply
    7,658.19x = 10,570.95 × 4,830.30
  4. Step 4: Simplify right side
    7,658.19x = 51,060,859.79
  5. Step 5: Solve for x
    x = 51,060,859.79/7,658.19
  6. Step 6: Final answer
    x = 6,667.48

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Half scale
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Double scale
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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.