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Finding the Fourth Proportional to 9,701.80, 14,552.70 and 9,615.40

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Solution

The fourth proportional to 9,701.80, 14,552.70 and 9,615.40 is: 14,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.80 : 14,552.70 = 9,615.40 : x
  2. Step 2: Convert to fraction form
    9,701.80/14,552.70 = 9,615.40/x
  3. Step 3: Cross multiply
    9,701.80x = 14,552.70 × 9,615.40
  4. Step 4: Simplify right side
    9,701.80x = 139,930,031.58
  5. Step 5: Solve for x
    x = 139,930,031.58/9,701.80
  6. Step 6: Final answer
    x = 14,423.10

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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.