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Finding the Fourth Proportional to 9,711.60, 14,567.40 and 8,444.40

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Solution

The fourth proportional to 9,711.60, 14,567.40 and 8,444.40 is: 12,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.60 : 14,567.40 = 8,444.40 : x
  2. Step 2: Convert to fraction form
    9,711.60/14,567.40 = 8,444.40/x
  3. Step 3: Cross multiply
    9,711.60x = 14,567.40 × 8,444.40
  4. Step 4: Simplify right side
    9,711.60x = 123,012,952.56
  5. Step 5: Solve for x
    x = 123,012,952.56/9,711.60
  6. Step 6: Final answer
    x = 12,666.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.